diff --git a/client/src/app/core/repositories/motions/motion-repository.service.ts b/client/src/app/core/repositories/motions/motion-repository.service.ts
index a7b752ee2..0efc76d3f 100644
--- a/client/src/app/core/repositories/motions/motion-repository.service.ts
+++ b/client/src/app/core/repositories/motions/motion-repository.service.ts
@@ -92,6 +92,7 @@ export class MotionRepositoryService extends BaseRepository<ViewMotion, Motion>
         const block = this.DS.get(MotionBlock, motion.motion_block_id);
         const attachments = this.DS.getMany(Mediafile, motion.attachments_id);
         const tags = this.DS.getMany(Tag, motion.tags_id);
+        const parent = this.DS.get(Motion, motion.parent_id);
         let state: WorkflowState = null;
         if (workflow) {
             state = workflow.getStateById(motion.state_id);
@@ -106,7 +107,8 @@ export class MotionRepositoryService extends BaseRepository<ViewMotion, Motion>
             item,
             block,
             attachments,
-            tags
+            tags,
+            parent
         );
     }
 
diff --git a/client/src/app/shared/components/projector-button/projector-button.component.scss b/client/src/app/shared/components/projector-button/projector-button.component.scss
index afe39ac65..5d253055f 100644
--- a/client/src/app/shared/components/projector-button/projector-button.component.scss
+++ b/client/src/app/shared/components/projector-button/projector-button.component.scss
@@ -1,8 +1,4 @@
-.projectorbutton-active {
-    color: white !important;
-}
-
 .projectorbutton-inactive {
-    background-color: white;
-    color: grey;
+    background-color: white !important;
+    color: grey !important;
 }
diff --git a/client/src/app/site/motions/components/motion-detail/motion-detail.component.html b/client/src/app/site/motions/components/motion-detail/motion-detail.component.html
index 2c4507daf..1cf555806 100644
--- a/client/src/app/site/motions/components/motion-detail/motion-detail.component.html
+++ b/client/src/app/site/motions/components/motion-detail/motion-detail.component.html
@@ -111,7 +111,20 @@
                 <mat-icon>{{ motion.star ? 'star' : 'star_border' }}</mat-icon>
             </button>
         </div>
-        <span class="main-nav-color title-font"><span translate>Sequential number</span>&nbsp;{{ motion.id }}</span>
+
+        <!-- Sequential number -->
+        <span class="main-nav-color title-font">
+            <span translate>Sequential number</span>&nbsp;{{ motion.id }}
+            <span *ngIf="motion.parent_id">
+                &#xb7;
+                <span>
+                    <span translate>Amendment to</span>&nbsp;<a
+                    [routerLink]="motion.parent.getDetailStateURL()">{{
+                        motion.parent.identifier || motion.parent.title
+                    }}</a>
+                </span>
+            </span>
+        </span>
     </div>
 
     <ng-container *ngIf="vp.isMobile; then mobileView; else desktopView"></ng-container>
@@ -371,6 +384,14 @@
             {{ motion.origin }}
         </div>
 
+        <!-- Ammendments -->
+        <div *ngIf="!editMotion && amendments && amendments.length > 0">
+            <h4 translate>Amendments</h4>
+            <div *ngFor="let amendment of amendments">
+                <a [routerLink]="amendment.motion.getDetailStateURL()">{{ amendment.identifierOrTitle }}</a>
+            </div>
+        </div>
+
         <!-- motion polls -->
         <div *ngIf="!editMotion" class="spacer-top-20 spacer-bottom-20">
             <os-motion-poll *ngFor="let poll of motion.motion.polls; let i = index" [rawPoll]="poll" [pollIndex]="i">
diff --git a/client/src/app/site/motions/models/view-motion.ts b/client/src/app/site/motions/models/view-motion.ts
index 3d36cddd4..59f5a7f58 100644
--- a/client/src/app/site/motions/models/view-motion.ts
+++ b/client/src/app/site/motions/models/view-motion.ts
@@ -53,6 +53,7 @@ export class ViewMotion extends BaseProjectableModel {
     protected _block: MotionBlock;
     protected _attachments: Mediafile[];
     protected _tags: Tag[];
+    protected _parent: Motion;
     public personalNote: PersonalNoteContent;
 
     /**
@@ -238,6 +239,10 @@ export class ViewMotion extends BaseProjectableModel {
         return this._tags ? this._tags : null;
     }
 
+    public get parent(): Motion {
+        return this._parent;
+    }
+
     /**
      * @returns the creation date as Date object
      */
@@ -320,7 +325,8 @@ export class ViewMotion extends BaseProjectableModel {
         item?: Item,
         block?: MotionBlock,
         attachments?: Mediafile[],
-        tags?: Tag[]
+        tags?: Tag[],
+        parent?: Motion
     ) {
         super();
         this._motion = motion;
@@ -333,6 +339,7 @@ export class ViewMotion extends BaseProjectableModel {
         this._block = block;
         this._attachments = attachments;
         this._tags = tags;
+        this._parent = parent;
     }
 
     public getTitle(): string {
@@ -374,6 +381,8 @@ export class ViewMotion extends BaseProjectableModel {
             this.updateAttachments(update as Mediafile);
         } else if (update instanceof Tag) {
             this.updateTags(update as Tag);
+        } else if (update instanceof Motion && update.id !== this.id) {
+            this.updateParent(update as Motion);
         }
     }
 
@@ -462,6 +471,14 @@ export class ViewMotion extends BaseProjectableModel {
         }
     }
 
+    public updateParent(update: Motion): void {
+        if (this.motion) {
+            if (this.parent_id && this.parent_id === update.id) {
+                this._parent = update as Motion;
+            }
+        }
+    }
+
     public hasSupporters(): boolean {
         return !!(this.supporters && this.supporters.length > 0);
     }
@@ -532,7 +549,8 @@ export class ViewMotion extends BaseProjectableModel {
             this._item,
             this._block,
             this._attachments,
-            this._tags
+            this._tags,
+            this._parent
         );
     }
 }
diff --git a/client/src/app/site/motions/services/motion-pdf.service.ts b/client/src/app/site/motions/services/motion-pdf.service.ts
index f41d3b948..87397abd4 100644
--- a/client/src/app/site/motions/services/motion-pdf.service.ts
+++ b/client/src/app/site/motions/services/motion-pdf.service.ts
@@ -119,18 +119,21 @@ export class MotionPdfService {
      */
     private createSubtitle(motion: ViewMotion): object {
         const subtitleLines = [];
+        const exportSequentialNumber = this.configService.instant('motions_export_sequential_number');
 
-        // TODO: documents for motion amendments (having parents)
-        //
-        // if (motion.parent_id) {
-        //     const parentMotion = this.motionRepo.getViewModel(motion.parent_id);
-        //     subtitleLines.push(`${this.translate.instant('Amendment to motion')}: ${motion.identifierOrTitle}`);
-        // }
-
-        if (this.configService.instant('motions_export_sequential_number')) {
+        if (exportSequentialNumber) {
             subtitleLines.push(`${this.translate.instant('Sequential number')}: ${motion.id}`);
         }
 
+        if (motion.parent_id) {
+            if (exportSequentialNumber) {
+                subtitleLines.push(' • ');
+            }
+            subtitleLines.push(
+                `${this.translate.instant('Amendment to')} ${motion.parent.identifier || motion.parent.title}`
+            );
+        }
+
         return {
             text: subtitleLines,
             style: 'subtitle'