diff --git a/dmp-backend/core/src/main/java/eu/eudat/model/persist/dmpblueprintdefinition/SectionPersist.java b/dmp-backend/core/src/main/java/eu/eudat/model/persist/dmpblueprintdefinition/SectionPersist.java
index e00154889..e6163be3b 100644
--- a/dmp-backend/core/src/main/java/eu/eudat/model/persist/dmpblueprintdefinition/SectionPersist.java
+++ b/dmp-backend/core/src/main/java/eu/eudat/model/persist/dmpblueprintdefinition/SectionPersist.java
@@ -151,6 +151,7 @@ public class SectionPersist {
                             .over(item.getFields().stream().filter(x -> x.getCategory() == DmpBlueprintFieldCategory.Extra).toList())
                             .using((itm) -> this.validatorFactory.validator(ExtraFieldPersist.ExtraFieldPersistValidator.class)),
                     this.spec()
+                            .iff(() -> (item.getHasTemplates()))
                             .must(() -> !this.isListNullOrEmpty(item.getDescriptionTemplates()))
                             .failOn(SectionPersist._descriptionTemplates).failWith(messageSource.getMessage("Validation_Required", new Object[]{SectionPersist._descriptionTemplates}, LocaleContextHolder.getLocale())),
                     this.navSpec()
diff --git a/dmp-frontend/src/app/ui/admin/dmp-blueprint/editor/dmp-blueprint-editor.component.html b/dmp-frontend/src/app/ui/admin/dmp-blueprint/editor/dmp-blueprint-editor.component.html
index 23733bbaa..837c7b385 100644
--- a/dmp-frontend/src/app/ui/admin/dmp-blueprint/editor/dmp-blueprint-editor.component.html
+++ b/dmp-frontend/src/app/ui/admin/dmp-blueprint/editor/dmp-blueprint-editor.component.html
@@ -84,7 +84,7 @@
 											<div class="col-6">
 												<mat-form-field class="w-100">
 													<mat-label>{{'DMP-BLUEPRINT-EDITOR.FIELDS.SYSTEM-FIELDS' | translate}}</mat-label>
-													<mat-select multiple [(ngModel)]="selectedSystemFields" [ngModelOptions]="{standalone: true}">
+													<mat-select multiple [(ngModel)]="selectedSystemFields" [ngModelOptions]="{standalone: true}" (selectionChange)= "addSystemField(sectionIndex, $event)">
 														<mat-option *ngFor="let systemFieldType of dmpBlueprintSystemFieldTypeEnum" [disabled]="systemFieldDisabled(systemFieldType)" [value]="systemFieldType">{{enumUtils.toDmpBlueprintSystemFieldTypeString(systemFieldType)}}</mat-option>
 													</mat-select>
 													<!-- <mat-error *ngIf="fieldsArray(sectionIndex).hasError('required')">
@@ -182,7 +182,7 @@
 											<div class="col-12">
 												<mat-form-field class="w-100">
 													<mat-label>{{'DMP-BLUEPRINT-EDITOR.FIELDS.DESCRIPTION-TEMPLATES' | translate}}</mat-label>
-													<app-multiple-auto-complete [disabled]="formGroup.disabled" [hidePlaceholder]="true" required='false' [configuration]="templatesAutoCompleteConfiguration" (optionRemoved)="onRemoveDescritionTemplate($event, sectionIndex)" (optionSelected)="onSelectDescritionTemplate($event, sectionIndex)"></app-multiple-auto-complete>
+													<app-multiple-auto-complete [formControl]="section.get('descriptionTemplates')" [disabled]="formGroup.disabled" [hidePlaceholder]="true" required='false' [configuration]="templatesAutoCompleteConfiguration" (optionRemoved)="onRemoveDescritionTemplate($event, sectionIndex)" (optionSelected)="onSelectDescritionTemplate($event, sectionIndex)"></app-multiple-auto-complete>
 												</mat-form-field>
 											</div>
 										</div>
diff --git a/dmp-frontend/src/app/ui/admin/dmp-blueprint/editor/dmp-blueprint-editor.component.ts b/dmp-frontend/src/app/ui/admin/dmp-blueprint/editor/dmp-blueprint-editor.component.ts
index 0537260c4..bc34539f9 100644
--- a/dmp-frontend/src/app/ui/admin/dmp-blueprint/editor/dmp-blueprint-editor.component.ts
+++ b/dmp-frontend/src/app/ui/admin/dmp-blueprint/editor/dmp-blueprint-editor.component.ts
@@ -35,8 +35,14 @@ import { map, takeUntil } from 'rxjs/operators';
 import { DescriptionTemplatesInSectionEditorModel, DmpBlueprintDefinitionSectionEditorModel, DmpBlueprintEditorModel, FieldInSectionEditorModel } from './dmp-blueprint-editor.model';
 import { DmpBlueprintEditorResolver } from './dmp-blueprint-editor.resolver';
 import { DmpBlueprintEditorService } from './dmp-blueprint-editor.service';
+import { MultipleAutoCompleteConfiguration } from '@app/library/auto-complete/multiple/multiple-auto-complete-configuration';
 import { DescriptionTemplateService } from '@app/core/services/description-template/description-template.service';
-import { SingleAutoCompleteConfiguration } from '@app/library/auto-complete/single/single-auto-complete-configuration';
+import { DescriptionTemplateLookup } from '@app/core/query/description-template.lookup';
+import { DescriptionTemplate } from '@app/core/model/description-template/description-template';
+import { nameof } from 'ts-simple-nameof';
+import { DescriptionTemplateStatus } from '@app/core/common/enum/description-template-status';
+import { DescriptionTemplateVersionStatus } from '@app/core/common/enum/description-template-version-status';
+import { MatSelectChange } from '@angular/material/select';
 
 
 @Component({
@@ -57,7 +63,14 @@ export class DmpBlueprintEditorComponent extends BaseEditor<DmpBlueprintEditorMo
 	public dmpBlueprintSystemFieldTypeEnum = this.enumUtils.getEnumValues<DmpBlueprintSystemFieldType>(DmpBlueprintSystemFieldType);
 	dmpBlueprintExtraFieldDataType = DmpBlueprintExtraFieldDataType;
 	public dmpBlueprintExtraFieldDataTypeEnum = this.enumUtils.getEnumValues<DmpBlueprintExtraFieldDataType>(DmpBlueprintExtraFieldDataType);
-	templatesAutoCompleteConfiguration: SingleAutoCompleteConfiguration
+	templatesAutoCompleteConfiguration: MultipleAutoCompleteConfiguration = {
+		initialItems: (excludedItems: any[], data?: any) => this.descriptionTemplateService.query(this.buildAutocompleteLookup(null, excludedItems ? excludedItems : null)).pipe(map(x => x.items)),
+		filterFn: (searchQuery: string, excludedItems: any[]) => this.descriptionTemplateService.query(this.buildAutocompleteLookup(searchQuery, excludedItems)).pipe(map(x => x.items)),
+		getSelectedItems: (selectedItems: any[]) => this.descriptionTemplateService.query(this.buildAutocompleteLookup(null, null, selectedItems)).pipe(map(x => x.items)),
+		displayFn: (item: DescriptionTemplate) => item.label,
+		titleFn: (item: DescriptionTemplate) => item.label,
+		valueAssign: (item: DescriptionTemplate) => item.id,
+	};
 
 	protected get canDelete(): boolean {
 		return !this.isDeleted && !this.isNew && this.hasPermission(this.authService.permissionEnum.DeleteDmpBlueprint);
@@ -99,7 +112,6 @@ export class DmpBlueprintEditorComponent extends BaseEditor<DmpBlueprintEditorMo
 		private descriptionTemplateService: DescriptionTemplateService
 	) {
 		super(dialog, language, formService, router, uiNotificationService, httpErrorHandlingService, filterService, datePipe, route, queryParamsService);
-		this.templatesAutoCompleteConfiguration = this.descriptionTemplateService.singleAutocompleteConfiguration;
 	}
 
 	ngOnInit(): void {
@@ -236,6 +248,13 @@ export class DmpBlueprintEditorComponent extends BaseEditor<DmpBlueprintEditorMo
 		sectionsFormArray.controls.forEach((section, index) => {
 			section.get('ordinal').setValue(index + 1);
 		});
+		DmpBlueprintEditorModel.reApplySectionValidators(
+			{
+				formGroup: this.formGroup,
+				validationErrorModel: this.editorModel.validationErrorModel
+			}
+		);
+		this.formGroup.get('definition').get('sections').markAsDirty();
 	}
 
 
@@ -263,14 +282,21 @@ export class DmpBlueprintEditorComponent extends BaseEditor<DmpBlueprintEditorMo
 		return (this.formGroup.get('definition').get('sections') as FormArray)?.controls.flatMap(x => (x.get('fields') as FormArray).controls.map(y => (y as UntypedFormGroup).get('systemFieldType')?.value as DmpBlueprintSystemFieldType));
 	}
 
-	addSystemField(sectionIndex: number, systemFieldType: DmpBlueprintSystemFieldType): void {
-		const field: FieldInSectionEditorModel = new FieldInSectionEditorModel();
-		field.id = Guid.create();
-		field.ordinal = ((this.formGroup.get('definition').get('sections') as FormArray).at(sectionIndex).get('fields') as FormArray).length + 1;
-		field.category = DmpBlueprintSectionFieldCategory.SYSTEM;
-		field.systemFieldType = systemFieldType;
-		field.required = (systemFieldType == DmpBlueprintSystemFieldType.TEXT || systemFieldType == DmpBlueprintSystemFieldType.HTML_TEXT) ? true : false;
-		((this.formGroup.get('definition').get('sections') as FormArray).at(sectionIndex).get('fields') as FormArray).push(field.buildForm()); //TODO: dtziotzios validation path
+	addSystemField(sectionIndex: number, matSelect: MatSelectChange): void {
+		const systemFieldTypes = matSelect.value as number[];
+		for (let systemFieldType of systemFieldTypes){
+			const fieldSize = ((this.formGroup.get('definition').get('sections') as FormArray).at(sectionIndex).get('fields') as FormArray).length; 
+			if (fieldSize == 0){
+				((this.formGroup.get('definition').get('sections') as FormArray).at(sectionIndex).get('fields') as FormArray).push(this.editorModel.createChildSystemField(sectionIndex, fieldSize, systemFieldType));
+				return;
+			}else{
+				if (!((this.formGroup.get('definition').get('sections') as FormArray).at(sectionIndex).get('fields') as FormArray).controls.some(y => (y as UntypedFormGroup).get('systemFieldType')?.value === systemFieldType)){
+					((this.formGroup.get('definition').get('sections') as FormArray).at(sectionIndex).get('fields') as FormArray).push(this.editorModel.createChildSystemField(sectionIndex, fieldSize, systemFieldType));
+					return;
+				}
+
+			}
+		}
 	}
 
 	removeSystemField(sectionIndex: number, fieldIndex: number): void {
@@ -279,6 +305,14 @@ export class DmpBlueprintEditorComponent extends BaseEditor<DmpBlueprintEditorMo
 		formArray.controls.forEach((section, index) => {
 			section.get('ordinal').setValue(index + 1);
 		});
+
+		DmpBlueprintEditorModel.reApplySectionValidators(
+			{
+				formGroup: this.formGroup,
+				validationErrorModel: this.editorModel.validationErrorModel
+			}
+		);
+		(this.formGroup.get('definition').get('sections') as FormArray).at(sectionIndex).get('fields').markAsDirty();
 	}
 
 	addExtraField(sectionIndex: number): void {
@@ -314,6 +348,13 @@ export class DmpBlueprintEditorComponent extends BaseEditor<DmpBlueprintEditorMo
 		fieldsFormArray.controls.forEach((section, index) => {
 			section.get('ordinal').setValue(index + 1);
 		});
+
+		DmpBlueprintEditorModel.reApplySectionValidators({
+			formGroup: this.formGroup,
+			validationErrorModel: this.editorModel.validationErrorModel
+		}
+		);
+		(this.formGroup.get('definition').get('sections') as FormArray).at(sectionIndex).get('fields').markAsDirty();
 	}
 
 	//
@@ -322,14 +363,24 @@ export class DmpBlueprintEditorComponent extends BaseEditor<DmpBlueprintEditorMo
 	//
 	//
 
-	//TODO refactor
-	// filterDescriptionTempaltes(value: string): Observable<DatasetProfileModel[]> {
-	// 	const request = new DataTableRequest<DatasetProfileCriteria>(null, null, { fields: ['+label'] });
-	// 	const criteria = new DatasetProfileCriteria();
-	// 	criteria.like = value;
-	// 	request.criteria = criteria;
-	// 	return this.dmpService.searchDmpBlueprints(request);
-	// }
+	private buildAutocompleteLookup(like?: string, excludedIds?: Guid[], ids?: Guid[]): DescriptionTemplateLookup {
+		const lookup: DescriptionTemplateLookup = new DescriptionTemplateLookup();
+		lookup.page = { size: 100, offset: 0 };
+		if (excludedIds && excludedIds.length > 0) { lookup.excludedIds = excludedIds; }
+		if (ids && ids.length > 0) { lookup.ids = ids; }
+		lookup.isActive = [IsActive.Active];
+		lookup.statuses = [DescriptionTemplateStatus.Finalized];
+		lookup.versionStatuses = [DescriptionTemplateVersionStatus.Current];
+		lookup.project = {
+			fields: [
+				nameof<DescriptionTemplate>(x => x.id),
+				nameof<DescriptionTemplate>(x => x.label)
+			]
+		};
+		lookup.order = { items: [nameof<DescriptionTemplate>(x => x.label)] };
+		if (like) { lookup.like = this.filterService.transformLike(like); }
+		return lookup;
+	}
 
 	onRemoveDescritionTemplate(event, sectionIndex: number) {
 		const descriptionTemplateFormArray = (this.formGroup.get('definition').get('sections') as FormArray).at(sectionIndex).get('descriptionTemplates') as FormArray;
diff --git a/dmp-frontend/src/app/ui/admin/dmp-blueprint/editor/dmp-blueprint-editor.model.ts b/dmp-frontend/src/app/ui/admin/dmp-blueprint/editor/dmp-blueprint-editor.model.ts
index 9e0edf87e..c28fd40a9 100644
--- a/dmp-frontend/src/app/ui/admin/dmp-blueprint/editor/dmp-blueprint-editor.model.ts
+++ b/dmp-frontend/src/app/ui/admin/dmp-blueprint/editor/dmp-blueprint-editor.model.ts
@@ -67,6 +67,16 @@ export class DmpBlueprintEditorModel extends BaseEditorModel implements DmpBluep
 		return section.buildForm({ rootPath: 'definition.sections[' + index + '].' });
 	}
 
+	createChildSystemField(sectionIndex: number, index: number, systemFieldType: DmpBlueprintSystemFieldType): UntypedFormGroup{
+		const field: FieldInSectionEditorModel = new FieldInSectionEditorModel(this.validationErrorModel);
+		field.id = Guid.create();
+		field.ordinal = index + 1;
+		field.category = DmpBlueprintSectionFieldCategory.SYSTEM;
+		field.systemFieldType = systemFieldType;
+		field.required = (systemFieldType == DmpBlueprintSystemFieldType.TEXT || systemFieldType == DmpBlueprintSystemFieldType.HTML_TEXT) ? true : false;
+		return field.buildForm({ rootPath: 'definition.sections[' + sectionIndex + '].fields[' + index + '].'});
+	}
+
 	createChildExtraField(sectionIndex: number, index: number): UntypedFormGroup {
 		const field: FieldInSectionEditorModel = new FieldInSectionEditorModel(this.validationErrorModel);
 		field.id = Guid.create();