diff --git a/dmp-backend/web/src/main/java/eu/eudat/models/data/components/commons/datafield/AutoCompleteData.java b/dmp-backend/web/src/main/java/eu/eudat/models/data/components/commons/datafield/AutoCompleteData.java
index ca42d2b97..6511679db 100644
--- a/dmp-backend/web/src/main/java/eu/eudat/models/data/components/commons/datafield/AutoCompleteData.java
+++ b/dmp-backend/web/src/main/java/eu/eudat/models/data/components/commons/datafield/AutoCompleteData.java
@@ -10,12 +10,11 @@ public class AutoCompleteData extends ComboBoxData<AutoCompleteData> {
     private String url;
     private Option autoCompleteOptions;
     private String optionsRoot;
-
+    private Boolean multiAutoComplete;
 
     public String getOptionsRoot() {
         return optionsRoot;
     }
-
     public void setOptionsRoot(String optionsRoot) {
         this.optionsRoot = optionsRoot;
     }
@@ -23,7 +22,6 @@ public class AutoCompleteData extends ComboBoxData<AutoCompleteData> {
     public String getUrl() {
         return url;
     }
-
     public void setUrl(String url) {
         this.url = url;
     }
@@ -31,17 +29,20 @@ public class AutoCompleteData extends ComboBoxData<AutoCompleteData> {
     public Option getAutoCompleteOptions() {
         return autoCompleteOptions;
     }
-
     public void setAutoCompleteOptions(Option autoCompleteOptions) {
         this.autoCompleteOptions = autoCompleteOptions;
     }
 
+    public Boolean getMultiAutoComplete() { return multiAutoComplete; }
+    public void setMultiAutoComplete(Boolean multiAutoComplete) { this.multiAutoComplete = multiAutoComplete; }
+
     @Override
     public Element toXml(Document doc) {
         Element root = super.toXml(doc);
 
         root.setAttribute("url", this.url);
         root.setAttribute("optionsRoot", this.optionsRoot);
+        root.setAttribute("multiAutoComplete", this.multiAutoComplete.toString());
         Element element = doc.createElement("option");
         element.setAttribute("label", this.autoCompleteOptions.getLabel());
         element.setAttribute("value", autoCompleteOptions.getValue());
@@ -54,6 +55,7 @@ public class AutoCompleteData extends ComboBoxData<AutoCompleteData> {
         super.fromXml(item);
         this.url = item.getAttribute("url");
         this.optionsRoot = item.getAttribute("optionsRoot");
+        this.multiAutoComplete = Boolean.parseBoolean(item.getAttribute("multiAutoComplete"));
         Element optionElement = (Element) item.getElementsByTagName("option").item(0);
         if (optionElement != null) {
             this.autoCompleteOptions = new Option();
@@ -70,6 +72,7 @@ public class AutoCompleteData extends ComboBoxData<AutoCompleteData> {
         if (data != null) {
             this.url = (String) ((Map<String, Object>) data).get("url");
             this.optionsRoot = (String) ((Map<String, Object>) data).get("optionsRoot");
+            this.multiAutoComplete = (Boolean) ((Map<Boolean, Object>) data).get("multiAutoComplete");
             Map<String, String> options = ((Map<String, Map<String, String>>) data).get("autoCompleteOptions");
             if (options != null) {
                 this.autoCompleteOptions.setLabel(options.get("label"));
diff --git a/dmp-frontend/src/app/core/formatting.module.ts b/dmp-frontend/src/app/core/formatting.module.ts
index 83b0f4ef0..91311f536 100644
--- a/dmp-frontend/src/app/core/formatting.module.ts
+++ b/dmp-frontend/src/app/core/formatting.module.ts
@@ -5,6 +5,7 @@ import { DateTimeFormatPipe } from './pipes/date-time-format.pipe';
 import { NgForLimitPipe } from './pipes/ng-for-limit.pipe';
 import { TimezoneInfoDisplayPipe } from './pipes/timezone-info-display.pipe';
 import { EnumUtils } from './services/utilities/enum-utils.service';
+import { JsonParserPipe } from './pipes/json-parser.pipe';
 
 //
 //
@@ -17,13 +18,15 @@ import { EnumUtils } from './services/utilities/enum-utils.service';
 		NgForLimitPipe,
 		TimezoneInfoDisplayPipe,
 		DateFormatPipe,
-		DateTimeFormatPipe
+		DateTimeFormatPipe,
+		JsonParserPipe
 	],
 	exports: [
 		NgForLimitPipe,
 		TimezoneInfoDisplayPipe,
 		DateFormatPipe,
-		DateTimeFormatPipe
+		DateTimeFormatPipe,
+		JsonParserPipe
 	],
 	providers: [
 		EnumUtils,
@@ -31,7 +34,8 @@ import { EnumUtils } from './services/utilities/enum-utils.service';
 		NgForLimitPipe,
 		TimezoneInfoDisplayPipe,
 		DateFormatPipe,
-		DateTimeFormatPipe
+		DateTimeFormatPipe,
+		JsonParserPipe
 	]
 })
 export class FormattingModule { }
diff --git a/dmp-frontend/src/app/core/model/dataset-profile-definition/field-data/field-data.ts b/dmp-frontend/src/app/core/model/dataset-profile-definition/field-data/field-data.ts
index ab96fd237..43a5d8e88 100644
--- a/dmp-frontend/src/app/core/model/dataset-profile-definition/field-data/field-data.ts
+++ b/dmp-frontend/src/app/core/model/dataset-profile-definition/field-data/field-data.ts
@@ -9,6 +9,7 @@ export interface AutoCompleteFieldData extends FieldData {
 	url: string;
 	optionsRoot: string;
 	autoCompleteOptions: FieldDataOption;
+	multiAutoComplete: boolean;
 }
 
 export interface CheckBoxFieldData extends FieldData {
@@ -43,4 +44,4 @@ export interface FieldDataOption extends FieldData {
 
 export interface DatePickerFieldData extends FieldData {
 
-}
\ No newline at end of file
+}
diff --git a/dmp-frontend/src/app/core/pipes/json-parser.pipe.ts b/dmp-frontend/src/app/core/pipes/json-parser.pipe.ts
new file mode 100644
index 000000000..625bf02a0
--- /dev/null
+++ b/dmp-frontend/src/app/core/pipes/json-parser.pipe.ts
@@ -0,0 +1,16 @@
+import { Pipe, PipeTransform } from "@angular/core";
+
+@Pipe({
+	name: 'jsonParser'
+})
+export class JsonParserPipe implements PipeTransform {
+
+	transform(val) {
+		if (typeof val === 'string') {
+			return JSON.parse(val)
+		}
+		else {
+			return val;
+		}
+	}
+}
diff --git a/dmp-frontend/src/app/library/auto-complete/auto-complete.module.ts b/dmp-frontend/src/app/library/auto-complete/auto-complete.module.ts
index 00a7b0ff2..b7cf221e6 100644
--- a/dmp-frontend/src/app/library/auto-complete/auto-complete.module.ts
+++ b/dmp-frontend/src/app/library/auto-complete/auto-complete.module.ts
@@ -3,12 +3,14 @@ import { CommonFormsModule } from '../../common/forms/common-forms.module';
 import { CommonUiModule } from '../../common/ui/common-ui.module';
 import { MultipleAutoCompleteComponent } from './multiple/multiple-auto-complete.component';
 import { SingleAutoCompleteComponent } from './single/single-auto-complete.component';
+import { FormattingModule } from '../../core/formatting.module';
 
 
 @NgModule({
 	imports: [
 		CommonUiModule,
-		CommonFormsModule
+		CommonFormsModule,
+		FormattingModule
 	],
 	declarations: [
 		SingleAutoCompleteComponent,
diff --git a/dmp-frontend/src/app/library/auto-complete/multiple/multiple-auto-complete-configuration.ts b/dmp-frontend/src/app/library/auto-complete/multiple/multiple-auto-complete-configuration.ts
index 5eedff7a5..98c86ee8d 100644
--- a/dmp-frontend/src/app/library/auto-complete/multiple/multiple-auto-complete-configuration.ts
+++ b/dmp-frontend/src/app/library/auto-complete/multiple/multiple-auto-complete-configuration.ts
@@ -20,4 +20,6 @@ export interface MultipleAutoCompleteConfiguration {
 	titleFn?: (item: any) => string;
 	// Display function for the drop down subtitle
 	subtitleFn?: (item: any) => string;
+	// Callback to intercept value assignment based on item selection
+	valueAssign?: (selectedItem: any) => any;
 }
diff --git a/dmp-frontend/src/app/library/auto-complete/multiple/multiple-auto-complete.component.html b/dmp-frontend/src/app/library/auto-complete/multiple/multiple-auto-complete.component.html
index 8b035d27c..5c6d1b02b 100644
--- a/dmp-frontend/src/app/library/auto-complete/multiple/multiple-auto-complete.component.html
+++ b/dmp-frontend/src/app/library/auto-complete/multiple/multiple-auto-complete.component.html
@@ -1,6 +1,6 @@
 <div class="row multiple-auto-complete">
 	<mat-chip-list #chipList ngDefaultControl class="col multi-chip-list" [disabled]="disabled">
-		<mat-chip *ngFor="let selectedItem of _chipItems()" [disabled]="disabled" [selectable]="selectable" [removable]="removable" (removed)="_removeSelectedItem(selectedItem)">
+		<mat-chip *ngFor="let selectedItem of (_chipItems() | jsonParser)" [disabled]="disabled" [selectable]="selectable" [removable]="removable" (removed)="_removeSelectedItem(selectedItem)">
 			{{this._displayFn(selectedItem)}}
 			<mat-icon matChipRemove *ngIf="!disabled && removable">cancel</mat-icon>
 		</mat-chip>
diff --git a/dmp-frontend/src/app/library/auto-complete/multiple/multiple-auto-complete.component.ts b/dmp-frontend/src/app/library/auto-complete/multiple/multiple-auto-complete.component.ts
index b29306f1b..9c9fdf719 100644
--- a/dmp-frontend/src/app/library/auto-complete/multiple/multiple-auto-complete.component.ts
+++ b/dmp-frontend/src/app/library/auto-complete/multiple/multiple-auto-complete.component.ts
@@ -87,16 +87,9 @@ export class MultipleAutoCompleteComponent implements OnInit, MatFormFieldContro
 	}
 	private _selectedValue;
 
-
-
-
-
 	@ViewChild('textInput') textInput: ElementRef;
 	@ViewChild(MatAutocompleteTrigger) autocomplete: MatAutocompleteTrigger;
 
-
-
-
 	constructor(
 		private fm: FocusMonitor,
 		private elRef: ElementRef,
@@ -115,7 +108,6 @@ export class MultipleAutoCompleteComponent implements OnInit, MatFormFieldContro
 	}
 
 	ngOnInit() {
-
 	}
 
 	filter(query: string): Observable<any[]> {
@@ -168,13 +160,31 @@ export class MultipleAutoCompleteComponent implements OnInit, MatFormFieldContro
 		return this.value || [];
 	}
 
+	_arraysEqual(arr1, arr2) {
+		if (arr1.length !== arr2.length)
+			return false;
+		for (var i = arr1.length; i--;) {
+			if (arr1[i].id !== arr2[i].id)
+				return false;
+		}
+
+		return true;
+	}
+
 	_optionSelected(event: MatAutocompleteSelectedEvent) {
-		const newValue = this.value || [];
-		newValue.push(event.option.value);
-		this._setValue(newValue);
-		this.stateChanges.next();
-		this.optionSelected.emit(newValue);
-		this.textInput.nativeElement.value = '';
+		if (this.configuration.valueAssign) {
+			const newValue = this.configuration.valueAssign(this.value) || [];
+			newValue.push(event.option.value);
+			this._setValue(this.configuration.valueAssign(newValue));
+		}
+		else {
+			const newValue = this.value || [];
+			newValue.push(event.option.value);
+			this._setValue(newValue);
+			this.stateChanges.next();
+			this.optionSelected.emit(newValue);
+			this.textInput.nativeElement.value = '';
+		}
 	}
 
 	private _setValue(value: any) {
@@ -221,13 +231,19 @@ export class MultipleAutoCompleteComponent implements OnInit, MatFormFieldContro
 	}
 
 	_removeSelectedItem(item: any): void {
-		const index = this.value.indexOf(item);
-		if (index >= 0) {
-			this.value.splice(index, 1);
+		if (this.configuration.valueAssign) {
 			this.optionRemoved.emit(item);
+			this.textInput.nativeElement.focus();
+		}
+		else {
+			const index = this.value.indexOf(item);
+			if (index >= 0) {
+				this.value.splice(index, 1);
+				this.optionRemoved.emit(item);
+			}
+			this.textInput.nativeElement.focus();
+			this.pushChanges(this.value);
 		}
-		this.textInput.nativeElement.focus();
-		this.pushChanges(this.value);
 	}
 
 	_onInputClick(item: any) {
diff --git a/dmp-frontend/src/app/ui/admin/dataset-profile/admin/field-data/auto-complete-field-data-editor-model.ts b/dmp-frontend/src/app/ui/admin/dataset-profile/admin/field-data/auto-complete-field-data-editor-model.ts
index fbcc694f6..3f31b849a 100644
--- a/dmp-frontend/src/app/ui/admin/dataset-profile/admin/field-data/auto-complete-field-data-editor-model.ts
+++ b/dmp-frontend/src/app/ui/admin/dataset-profile/admin/field-data/auto-complete-field-data-editor-model.ts
@@ -9,16 +9,20 @@ export class AutoCompleteFieldDataEditorModel extends FieldDataEditorModel<AutoC
 	public type: DatasetProfileComboBoxType = DatasetProfileComboBoxType.Autocomplete;
 	public url: string;
 	public optionsRoot: string;
+	public multiAutoComplete: boolean;
 	public autoCompleteOptions: FieldDataOptionEditorModel = new FieldDataOptionEditorModel();
+	//public multiAutoCompleteOptions: FieldDataOptionEditorModel = new FieldDataOptionEditorModel();
 
 	buildForm(): FormGroup {
 		const formGroup = this.formBuilder.group({
 			label: [this.label],
 			type: [this.type],
 			url: [this.url],
-			optionsRoot: [this.optionsRoot]
+			optionsRoot: [this.optionsRoot],
+			multiAutoComplete: [this.multiAutoComplete]
 		});
 		formGroup.addControl('autoCompleteOptions', this.autoCompleteOptions.buildForm());
+
 		return formGroup;
 	}
 
@@ -27,6 +31,7 @@ export class AutoCompleteFieldDataEditorModel extends FieldDataEditorModel<AutoC
 		this.url = item.url;
 		this.label = item.label;
 		this.optionsRoot = item.optionsRoot;
+		this.multiAutoComplete = item.multiAutoComplete;
 		this.autoCompleteOptions = new FieldDataOptionEditorModel().fromModel(item.autoCompleteOptions);
 		return this;
 	}
diff --git a/dmp-frontend/src/app/ui/admin/dataset-profile/editor/components/field-type/auto-complete/dataset-profile-editor-auto-complete-field.component.html b/dmp-frontend/src/app/ui/admin/dataset-profile/editor/components/field-type/auto-complete/dataset-profile-editor-auto-complete-field.component.html
index bf6e6b8d0..e68a395d5 100644
--- a/dmp-frontend/src/app/ui/admin/dataset-profile/editor/components/field-type/auto-complete/dataset-profile-editor-auto-complete-field.component.html
+++ b/dmp-frontend/src/app/ui/admin/dataset-profile/editor/components/field-type/auto-complete/dataset-profile-editor-auto-complete-field.component.html
@@ -1,15 +1,20 @@
 <div class="row" *ngIf="form.get('data')">
 
-	<h5 style="font-weight: bold" class="col-12">{{'DATASET-PROFILE-EDITOR.STEPS.FORM.FIELD.FIELDS.FIELD-AUTOCOMPLETE-TITLE' | translate}}</h5>
+	<h5 style="font-weight: bold" class="col-auto">{{'DATASET-PROFILE-EDITOR.STEPS.FORM.FIELD.FIELDS.FIELD-AUTOCOMPLETE-TITLE' | translate}}</h5>
+	<mat-checkbox class="col-auto" [formControl]="this.form.get('data').get('multiAutoComplete')">
+		DATASET-PROFILE-EDITOR.STEPS.FORM.FIELD.FIELDS.FIELD-MULTIPLE-AUTOCOMPLETE
+	</mat-checkbox>
 
 	<mat-form-field class="col-12">
-		<input matInput type="string" placeholder="{{'DATASET-PROFILE-EDITOR.STEPS.FORM.FIELD.FIELDS.FIELD-AUTOCOMPLETE-PLACEHOLDER' | translate}}" [formControl]="form.get('data').get('label')">
+		<input matInput type="string" placeholder="{{'DATASET-PROFILE-EDITOR.STEPS.FORM.FIELD.FIELDS.FIELD-AUTOCOMPLETE-PLACEHOLDER' | translate}}"
+		 [formControl]="form.get('data').get('label')">
 	</mat-form-field>
 	<mat-form-field class="col-md-12">
 		<input matInput placeholder="{{'DATASET-PROFILE-EDITOR.STEPS.FORM.FIELD.FIELDS.FIELD-AUTOCOMPLETE-URL' | translate}}" [formControl]="this.form.get('data').get('url')">
 	</mat-form-field>
 	<mat-form-field class="col-md-4">
-		<input matInput placeholder="{{'DATASET-PROFILE-EDITOR.STEPS.FORM.FIELD.FIELDS.FIELD-AUTOCOMPLETE-OPTIONS-ROOT' | translate}}" [formControl]="this.form.get('data').get('optionsRoot')">
+		<input matInput placeholder="{{'DATASET-PROFILE-EDITOR.STEPS.FORM.FIELD.FIELDS.FIELD-AUTOCOMPLETE-OPTIONS-ROOT' | translate}}"
+		 [formControl]="this.form.get('data').get('optionsRoot')">
 	</mat-form-field>
 	<mat-form-field class="col-md-4">
 		<input matInput placeholder="{{'DATASET-PROFILE-EDITOR.STEPS.FORM.FIELD.FIELDS.FIELD-AUTOCOMPLETE-LABEL' | translate}}" [formControl]="this.form.get('data').get('autoCompleteOptions').get('label')">
diff --git a/dmp-frontend/src/app/ui/misc/dataset-description-form/components/form-field/form-field.component.html b/dmp-frontend/src/app/ui/misc/dataset-description-form/components/form-field/form-field.component.html
index 2a99bad3b..16f83e6c5 100644
--- a/dmp-frontend/src/app/ui/misc/dataset-description-form/components/form-field/form-field.component.html
+++ b/dmp-frontend/src/app/ui/misc/dataset-description-form/components/form-field/form-field.component.html
@@ -1,4 +1,5 @@
-<div *ngIf="form && this.visibilityRulesService.checkElementVisibility(this.form.get('id').value)" [id]="this.form.get('id').value" [formGroup]="form" [ngSwitch]="this.form.get('viewStyle').value.renderStyle" class="dynamic-form-field row">
+<div *ngIf="form && this.visibilityRulesService.checkElementVisibility(this.form.get('id').value)" [id]="this.form.get('id').value"
+ [formGroup]="form" [ngSwitch]="this.form.get('viewStyle').value.renderStyle" class="dynamic-form-field row">
 
 	<h5 *ngIf="this.form.get('title').value && !isChild">{{this.form.get('title').value}}</h5>
 	<mat-icon *ngIf="this.form.get('additionalInformation').value && !isChild" matTooltip="{{this.form.get('additionalInformation').value}}">info</mat-icon>
@@ -6,20 +7,28 @@
 	<h5 *ngIf="this.form.get('description').value && !isChild" class="col-12">{{this.form.get('description').value}}
 	</h5>
 	<h5 *ngIf="this.form.get('extendedDescription').value && !isChild" class="col-12">
-		<i>{{this.form.get('extendedDescription').value}}</i></h5>
+		<i>{{this.form.get('extendedDescription').value}}</i>
+	</h5>
 	<mat-form-field *ngSwitchCase="datasetProfileFieldViewStyleEnum.FreeText" class="col-12">
 		<input matInput [formControl]="form.get('value')" placeholder="{{form.get('data').value.label}}" [required]="form.get('validationRequired').value">
-		<mat-error *ngIf="form.get('value')['errors'] && form.get('value')['errors']['required']">{{'GENERAL.VALIDATION.REQUIRED'
-			| translate}}</mat-error>
+		<mat-error *ngIf="form.get('value')['errors'] && form.get('value')['errors']['required']">{{'GENERAL.VALIDATION.REQUIRED' | translate}}</mat-error>
 	</mat-form-field>
 
 	<div *ngSwitchCase="datasetProfileFieldViewStyleEnum.ComboBox" class="col-12">
 		<div class="row">
 			<mat-form-field class="col-md-12" *ngIf="form.get('data').value.type === datasetProfileComboBoxTypeEnum.Autocomplete">
-				<app-single-auto-complete placeholder="{{ form.get('data').value.label | translate }}" [formControl]="form.get('value')" [configuration]="singleAutoCompleteConfiguration" [required]="form.get('validationRequired').value">
-				</app-single-auto-complete>
-				<mat-error *ngIf="form.get('value').hasError('required')">{{'GENERAL.VALIDATION.REQUIRED' | translate}}
-				</mat-error>
+				<div *ngIf="form.get('data').value.multiAutoComplete">
+					<app-multiple-auto-complete placeholder="{{ form.get('data').value.label | translate }}" [formControl]="form.get('value')"
+					 [configuration]="multipleAutoCompleteConfiguration" (optionRemoved)="_optionRemove($event)">
+					</app-multiple-auto-complete>
+				</div>
+				<div *ngIf="!(form.get('data').value.multiAutoComplete)">
+					<app-single-auto-complete placeholder="{{ form.get('data').value.label | translate }}" [formControl]="form.get('value')"
+					 [configuration]="singleAutoCompleteConfiguration" [required]="form.get('validationRequired').value">
+					</app-single-auto-complete>
+					<mat-error *ngIf="form.get('value').hasError('required')">{{'GENERAL.VALIDATION.REQUIRED' | translate}}
+					</mat-error>
+				</div>
 			</mat-form-field>
 			<mat-form-field *ngIf="form.get('data').value.type === datasetProfileComboBoxTypeEnum.WordList" class="col-md-12">
 				<mat-select [formControl]="form.get('value')" placeholder="{{ form.get('data').value.label | translate }}" [required]="form.get('validationRequired').value">
@@ -38,12 +47,12 @@
 	</div>
 
 	<mat-form-field *ngSwitchCase="datasetProfileFieldViewStyleEnum.TextArea" class="col-12">
-		<textarea matInput [formControl]="form.get('value')" matTextareaAutosize matAutosizeMinRows="2" matAutosizeMaxRows="10" [required]="form.get('validationRequired').value" placeholder="{{ form.get('data').value.label | translate }}"></textarea>
+		<textarea matInput [formControl]="form.get('value')" matTextareaAutosize matAutosizeMinRows="2" matAutosizeMaxRows="10" [required]="form.get('validationRequired').value"
+		 placeholder="{{ form.get('data').value.label | translate }}"></textarea>
 		<button mat-icon-button *ngIf="!form.get('value').disabled && form.get('value').value" matSuffix aria-label="Clear" (click)="this.form.patchValue({'value': ''})">
 			<mat-icon>close</mat-icon>
 		</button>
-		<mat-error *ngIf="form.get('value')['errors'] && form.get('value')['errors']['required']">{{'GENERAL.VALIDATION.REQUIRED'
-			| translate}}</mat-error>
+		<mat-error *ngIf="form.get('value')['errors'] && form.get('value')['errors']['required']">{{'GENERAL.VALIDATION.REQUIRED' | translate}}</mat-error>
 	</mat-form-field>
 
 	<div *ngSwitchCase="datasetProfileFieldViewStyleEnum.BooleanDecision" class="col-12">
@@ -66,7 +75,8 @@
 	</div>
 
 	<mat-form-field *ngSwitchCase="datasetProfileFieldViewStyleEnum.DatePicker" class="col-12">
-		<input matInput placeholder="{{ form.get('data').value.label | translate }}" class="table-input" [matDatepicker]="date" [required]="form.get('validationRequired').value" [formControl]="form.get('value')">
+		<input matInput placeholder="{{ form.get('data').value.label | translate }}" class="table-input" [matDatepicker]="date" [required]="form.get('validationRequired').value"
+		 [formControl]="form.get('value')">
 		<mat-datepicker-toggle matSuffix [for]="date"></mat-datepicker-toggle>
 		<mat-datepicker #date></mat-datepicker>
 		<mat-error *ngIf="form.get('value').hasError('required')">
diff --git a/dmp-frontend/src/app/ui/misc/dataset-description-form/components/form-field/form-field.component.ts b/dmp-frontend/src/app/ui/misc/dataset-description-form/components/form-field/form-field.component.ts
index 1709ec5a9..aa2716ee3 100644
--- a/dmp-frontend/src/app/ui/misc/dataset-description-form/components/form-field/form-field.component.ts
+++ b/dmp-frontend/src/app/ui/misc/dataset-description-form/components/form-field/form-field.component.ts
@@ -9,6 +9,7 @@ import { RequestItem } from '../../../../../core/query/request-item';
 import { DatasetExternalAutocompleteService } from '../../../../../core/services/dataset/dataset-external-autocomplete.service';
 import { SingleAutoCompleteConfiguration } from '../../../../../library/auto-complete/single/single-auto-complete-configuration';
 import { VisibilityRulesService } from '../../visibility-rules/visibility-rules.service';
+import { MultipleAutoCompleteConfiguration } from '../../../../../library/auto-complete/multiple/multiple-auto-complete-configuration';
 
 @Component({
 	selector: 'app-form-field',
@@ -26,6 +27,7 @@ export class FormFieldComponent extends BaseComponent implements OnInit {
 	// trackByFn = (index, item) => item ? item['id'] : null;
 
 	public singleAutoCompleteConfiguration: SingleAutoCompleteConfiguration;
+	public multipleAutoCompleteConfiguration: MultipleAutoCompleteConfiguration;
 	datasetProfileFieldViewStyleEnum = DatasetProfileFieldViewStyle;
 	datasetProfileComboBoxTypeEnum = DatasetProfileComboBoxType;
 
@@ -41,13 +43,24 @@ export class FormFieldComponent extends BaseComponent implements OnInit {
 
 		// Setup autocomplete configuration if needed
 		if (this.form.get('viewStyle').value.renderStyle === DatasetProfileFieldViewStyle.ComboBox && this.form.get('data').value.type === DatasetProfileComboBoxType.Autocomplete) {
-			this.singleAutoCompleteConfiguration = {
-				filterFn: this.searchFromAutocomplete.bind(this),
-				initialItems: (extraData) => this.searchFromAutocomplete(''),
-				displayFn: (item) => (item != null && item.length > 1) ? JSON.parse(item).label : item['label'],
-				titleFn: (item) => item['label'],
-				valueAssign: (item) => JSON.stringify(item)
-			};
+			if (!(this.form.controls['data'].value.multiAutoComplete)) {
+				this.singleAutoCompleteConfiguration = {
+					filterFn: this.searchFromAutocomplete.bind(this),
+					initialItems: (extraData) => this.searchFromAutocomplete(''),
+					displayFn: (item) => (item != null && item.length > 1) ? JSON.parse(item).label : item['label'],
+					titleFn: (item) => item['label'],
+					valueAssign: (item) => JSON.stringify(item)
+				};
+			}
+			else {
+				this.multipleAutoCompleteConfiguration = {
+					filterFn: this.searchFromAutocomplete.bind(this),
+					initialItems: (extraData) => this.searchFromAutocomplete(''),
+					displayFn: (item) => item['label'],
+					titleFn: (item) => item['label'],
+					valueAssign: this._transformValue
+				}
+			}
 		}
 
 		// this.form = this.visibilityRulesService.getFormGroup(this.field.id);
@@ -57,7 +70,22 @@ export class FormFieldComponent extends BaseComponent implements OnInit {
 				this.visibilityRulesService.updateValueAndVisibility(this.form.get('id').value, item);
 			});
 	}
-	// }
+
+	_optionRemove(event) {
+		const array = JSON.parse(this.form.get('value').value);
+		if (array) {
+			const index = array.map(x => x.id).indexOf(event.id);
+			if (index >= 0) {
+				array.splice(index, 1);
+			}
+			this.form.get('value').patchValue(JSON.stringify(array));
+		}
+	}
+
+	_transformValue(item: any) {
+		if (!item) return [];
+		return item && typeof item === 'string' ? JSON.parse(item) : JSON.stringify(item);
+	}
 
 	searchFromAutocomplete(query: string) {
 		const autocompleteRequestItem: RequestItem<DatasetExternalAutocompleteCriteria> = new RequestItem();
@@ -68,5 +96,4 @@ export class FormFieldComponent extends BaseComponent implements OnInit {
 		autocompleteRequestItem.criteria.like = query;
 		return this.datasetExternalAutocompleteService.queryAutocomplete(autocompleteRequestItem);
 	}
-
 }