diff --git a/src/Squidex/app/features/content/pages/schemas/schemas-page.component.html b/src/Squidex/app/features/content/pages/schemas/schemas-page.component.html
index ec3ffec5c..ac121fd9e 100644
--- a/src/Squidex/app/features/content/pages/schemas/schemas-page.component.html
+++ b/src/Squidex/app/features/content/pages/schemas/schemas-page.component.html
@@ -18,10 +18,8 @@
     <ng-container content>
         <ng-container *ngIf="schemasState.publishedSchemas | async; let schemas">
             <sqx-schema-category *ngFor="let category of schemasState.categories | async; trackBy: trackByCategory"
-                [name]="category"
-                [schemas]="schemas"
+                [schemaCategory]="category"
                 [schemasFilter]="schemasFilter.valueChanges | async"
-                [routeSingletonToContent]="true"
                 [forContent]="true">
             </sqx-schema-category>
         </ng-container>
diff --git a/src/Squidex/app/features/content/pages/schemas/schemas-page.component.ts b/src/Squidex/app/features/content/pages/schemas/schemas-page.component.ts
index 273951329..832464b46 100644
--- a/src/Squidex/app/features/content/pages/schemas/schemas-page.component.ts
+++ b/src/Squidex/app/features/content/pages/schemas/schemas-page.component.ts
@@ -8,7 +8,11 @@
 import { Component, OnInit } from '@angular/core';
 import { FormControl } from '@angular/forms';
 
-import { AppsState, SchemasState } from '@app/shared';
+import {
+    AppsState,
+    SchemaCategory,
+    SchemasState
+} from '@app/shared';
 
 @Component({
     selector: 'sqx-schemas-page',
@@ -28,8 +32,8 @@ export class SchemasPageComponent implements OnInit {
         this.schemasState.load();
     }
 
-    public trackByCategory(index: number, category: string) {
-        return category;
+    public trackByCategory(index: number, category: SchemaCategory) {
+        return category.name;
     }
 }
 
diff --git a/src/Squidex/app/features/schemas/pages/schemas/schemas-page.component.html b/src/Squidex/app/features/schemas/pages/schemas/schemas-page.component.html
index 5aa97c034..1c35ce05b 100644
--- a/src/Squidex/app/features/schemas/pages/schemas/schemas-page.component.html
+++ b/src/Squidex/app/features/schemas/pages/schemas/schemas-page.component.html
@@ -27,10 +27,9 @@
 
     <ng-container content>
         <sqx-schema-category *ngFor="let category of schemasState.categories | async; trackBy: trackByCategory"
-            [name]="category"
-            [schemas]="schemasState.schemas | async"
+            [schemaCategory]="category"
             [schemasFilter]="schemasFilter.valueChanges | async"
-            (remove)="removeCategory(category)">
+            (remove)="removeCategory(category.name)">
         </sqx-schema-category>
 
         <form [formGroup]="addCategoryForm.form" (ngSubmit)="addCategory()">
diff --git a/src/Squidex/app/features/schemas/pages/schemas/schemas-page.component.ts b/src/Squidex/app/features/schemas/pages/schemas/schemas-page.component.ts
index 7c8aa690f..10b07fade 100644
--- a/src/Squidex/app/features/schemas/pages/schemas/schemas-page.component.ts
+++ b/src/Squidex/app/features/schemas/pages/schemas/schemas-page.component.ts
@@ -16,6 +16,7 @@ import {
     DialogModel,
     MessageBus,
     ResourceOwner,
+    SchemaCategory,
     SchemaDto,
     SchemasState
 } from '@app/shared';
@@ -94,8 +95,8 @@ export class SchemasPageComponent extends ResourceOwner implements OnInit {
         this.addSchemaDialog.show();
     }
 
-    public trackByCategory(index: number, category: string) {
-        return category;
+    public trackByCategory(index: number, category: SchemaCategory) {
+        return category.name;
     }
 }
 
diff --git a/src/Squidex/app/shared/components/schema-category.component.html b/src/Squidex/app/shared/components/schema-category.component.html
index 406e91f13..339e189cf 100644
--- a/src/Squidex/app/shared/components/schema-category.component.html
+++ b/src/Squidex/app/shared/components/schema-category.component.html
@@ -1,4 +1,4 @@
-<div *ngIf="!forContent || snapshot.schemasFiltered.length > 0" dnd-droppable class="droppable category" [allowDrop]="allowDrop" (onDropSuccess)="changeCategory($event.dragData)">
+<div *ngIf="!forContent || snapshot.filtered.length > 0" dnd-droppable class="droppable category" [allowDrop]="allowDrop" (onDropSuccess)="changeCategory($event.dragData)">
     <div class="drop-indicator"></div>
 
     <div class="header clearfix">
@@ -6,18 +6,18 @@
             <i [class.icon-caret-right]="!snapshot.isOpen" [class.icon-caret-down]="snapshot.isOpen"></i> 
         </button>
 
-        <h3>{{snapshot.displayName}} ({{snapshot.schemasFiltered.length}})</h3>
+        <h3>{{schemaCategory.name}} ({{snapshot.filtered.length}})</h3>
         
-        <button type="button" class="btn btn-sm btn-text-secondary float-right" *ngIf="snapshot.schemasForCategory.length === 0 && !forContent" (click)="emitRemove()">
+        <button type="button" class="btn btn-sm btn-text-secondary float-right" *ngIf="schemaCategory.schemas.length === 0 && !forContent" (click)="emitRemove()">
             <i class="icon-bin2"></i> 
         </button>
     </div>
 
     <ul class="nav nav-panel nav-dark nav-dark-bordered flex-column" *ngIf="snapshot.isOpen" @fade>
-        <ng-container *ngFor="let schema of snapshot.schemasFiltered; trackBy: trackBySchema">
-            <li class="nav-item" dnd-draggable [dragEnabled]="!forContent && schema.canUpdateCategory" [dragData]="schema">
+        <ng-container *ngIf="!forContent; else simpleMode">
+            <li *ngFor="let schema of snapshot.filtered; trackBy: trackBySchema" class="nav-item" dnd-draggable [dragEnabled]="schema.canUpdateCategory" [dragData]="schema">
                 <a class="nav-link" [routerLink]="schemaRoute(schema)" routerLinkActive="active">
-                    <div class="row" *ngIf="!forContent; else simpleMode">
+                    <div class="row">
                         <div class="col-4">
                             <span class="schema-name schema-name-accent">{{schema.displayName}}</span> 
                         </div>
@@ -32,12 +32,16 @@
                             <span class="item-published" [class.unpublished]="!schema.isPublished"></span>
                         </div>
                     </div>
-
-                    <ng-template #simpleMode>
-                        <span class="schema-name" *ngIf="forContent">{{schema.displayName}}</span>
-                    </ng-template>
                 </a>
             </li>
         </ng-container>
+
+        <ng-template #simpleMode>
+            <li *ngFor="let schema of snapshot.filtered; trackBy: trackBySchema" class="nav-item">
+                <a class="nav-link" [routerLink]="schemaRoute(schema)" routerLinkActive="active">
+                    <span class="schema-name" *ngIf="forContent">{{schema.displayName}}</span>
+                </a>
+            </li>
+        </ng-template>
     </ul>
 </div>
diff --git a/src/Squidex/app/shared/components/schema-category.component.ts b/src/Squidex/app/shared/components/schema-category.component.ts
index b5d714d9d..7d8e65e0c 100644
--- a/src/Squidex/app/shared/components/schema-category.component.ts
+++ b/src/Squidex/app/shared/components/schema-category.component.ts
@@ -10,7 +10,9 @@ import { ChangeDetectionStrategy, ChangeDetectorRef, Component, EventEmitter, In
 import {
     fadeAnimation,
     ImmutableArray,
+    isSameCategory,
     LocalStoreService,
+    SchemaCategory,
     SchemaDetailsDto,
     SchemaDto,
     SchemasState,
@@ -19,12 +21,9 @@ import {
 } from '@app/shared/internal';
 
 interface State {
-    displayName?: string;
+    filtered: ImmutableArray<SchemaDto>;
 
-    schemasFiltered: ImmutableArray<SchemaDto>;
-    schemasForCategory: ImmutableArray<SchemaDto>;
-
-    isOpen: boolean;
+    isOpen?: boolean;
 }
 
 @Component({
@@ -38,36 +37,26 @@ interface State {
 })
 export class SchemaCategoryComponent extends StatefulComponent<State> implements OnInit, OnChanges {
     @Input()
-    public name: string;
-
-    @Input()
-    public forContent: boolean;
-
-    @Input()
-    public routeSingletonToContent = false;
+    public schemaCategory: SchemaCategory;
 
     @Input()
     public schemasFilter: string;
 
     @Input()
-    public schemas: ImmutableArray<SchemaDto>;
+    public forContent: boolean;
 
     @Output()
     public remove = new EventEmitter();
 
     public allowDrop = (schema: any) => {
-        return (Types.is(schema, SchemaDto) || Types.is(schema, SchemaDetailsDto)) && !this.isSameCategory(schema);
+        return (Types.is(schema, SchemaDto) || Types.is(schema, SchemaDetailsDto)) && !isSameCategory(this.schemaCategory.name, schema);
     }
 
     constructor(changeDetector: ChangeDetectorRef,
         private readonly localStore: LocalStoreService,
         private readonly schemasState: SchemasState
     ) {
-        super(changeDetector, {
-            schemasFiltered: ImmutableArray.empty(),
-            schemasForCategory: ImmutableArray.empty(),
-            isOpen: true
-        });
+        super(changeDetector, { filtered: ImmutableArray.empty(), isOpen: true });
     }
 
     public ngOnInit() {
@@ -81,52 +70,37 @@ export class SchemaCategoryComponent extends StatefulComponent<State> implements
     }
 
     public ngOnChanges(changes: SimpleChanges): void {
-        if (changes['schemas'] || changes['schemasFilter']) {
-            const isSameCategory = (schema: SchemaDto) => {
-                return (!this.name && !schema.category) || schema.category === this.name;
-            };
+        if (changes['schemaCategory'] || changes['schemasFilter']) {
+            let filtered = this.schemaCategory.schemas;
 
-            const query = this.schemasFilter;
-
-            const schemasForCategory = this.schemas.filter(x => isSameCategory(x));
-            const schemasFiltered = schemasForCategory.filter(x => !query || x.name.indexOf(query) >= 0);
+            if (this.forContent) {
+                filtered = filtered.filter(x => x.canReadContents);
+            }
 
             let isOpen = false;
 
-            if (query) {
+            if (this.schemasFilter) {
+                filtered = filtered.filter(x => x.name.indexOf(this.schemasFilter) >= 0);
+
                 isOpen = true;
             } else {
-                isOpen = this.localStore.get(`schema-category.${this.name}`) !== 'false';
-            }
-
-            this.next(s => ({ ...s, isOpen, schemasFiltered, schemasForCategory }));
-        }
-
-        if (changes['name']) {
-            let displayName = 'Schemas';
-
-            if (this.name && this.name.length > 0) {
-                displayName = this.name;
+                isOpen = this.localStore.get(`schema-category.${this.schemaCategory.name}`) !== 'false';
             }
 
-            this.next(s => ({ ...s, displayName }));
+            this.next(s => ({ ...s, isOpen, filtered }));
         }
     }
 
     public schemaRoute(schema: SchemaDto) {
-        if (schema.isSingleton && this.routeSingletonToContent) {
+        if (schema.isSingleton && this.forContent) {
             return [schema.name, schema.id];
         } else {
             return [schema.name];
         }
     }
 
-    private isSameCategory(schema: SchemaDto): boolean {
-        return ((!this.name && !schema.category) || schema.category === this.name) && (!this.forContent || schema.canReadContents);
-    }
-
     public changeCategory(schema: SchemaDto) {
-        this.schemasState.changeCategory(schema, this.name);
+        this.schemasState.changeCategory(schema, this.schemaCategory.name);
     }
 
     public emitRemove() {
@@ -138,6 +112,6 @@ export class SchemaCategoryComponent extends StatefulComponent<State> implements
     }
 
     private configKey(): string {
-        return `squidex.schema.category.${this.name}.closed`;
+        return `squidex.schema.category.${this.schemaCategory.name}.closed`;
     }
 }
diff --git a/src/Squidex/app/shared/state/schemas.state.spec.ts b/src/Squidex/app/shared/state/schemas.state.spec.ts
index 4e8c74c74..9fe337b67 100644
--- a/src/Squidex/app/shared/state/schemas.state.spec.ts
+++ b/src/Squidex/app/shared/state/schemas.state.spec.ts
@@ -9,10 +9,11 @@
 import { of, throwError } from 'rxjs';
 import { IMock, It, Mock, Times } from 'typemoq';
 
-import { SchemasState } from './schemas.state';
+import { SchemaCategory, SchemasState } from './schemas.state';
 
 import {
     DialogService,
+    ImmutableArray,
     SchemaDetailsDto,
     SchemasService,
     UpdateSchemaCategoryDto,
@@ -69,7 +70,13 @@ describe('SchemasState', () => {
 
             expect(schemasState.snapshot.schemas.values).toEqual(oldSchemas.items);
             expect(schemasState.snapshot.isLoaded).toBeTruthy();
-            expect(schemasState.snapshot.categories).toEqual({ 'category1': false, 'category2': false });
+
+            const categories = getCategories(schemasState);
+
+            expect(categories!).toEqual([
+                { name: 'category1', upper: 'CATEGORY1', schemas: ImmutableArray.of([schema1]) },
+                { name: 'category2', upper: 'CATEGORY2', schemas: ImmutableArray.of([schema2]) }
+            ]);
 
             schemasService.verifyAll();
         });
@@ -83,7 +90,14 @@ describe('SchemasState', () => {
 
             expect(schemasState.snapshot.schemas.values).toEqual(oldSchemas.items);
             expect(schemasState.snapshot.isLoaded).toBeTruthy();
-            expect(schemasState.snapshot.categories).toEqual({ 'category1': false, 'category2': false, 'category3': true });
+
+            const categories = getCategories(schemasState);
+
+            expect(categories!).toEqual([
+                { name: 'category1', upper: 'CATEGORY1', schemas: ImmutableArray.of([schema1]) },
+                { name: 'category2', upper: 'CATEGORY2', schemas: ImmutableArray.of([schema2]) },
+                { name: 'category3', upper: 'CATEGORY3', schemas: ImmutableArray.empty() }
+            ]);
 
             schemasService.verifyAll();
         });
@@ -111,13 +125,36 @@ describe('SchemasState', () => {
         it('should add category', () => {
             schemasState.addCategory('category3');
 
-            expect(schemasState.snapshot.categories).toEqual({ 'category1': false, 'category2': false, 'category3': true });
+            const categories = getCategories(schemasState);
+
+            expect(categories!).toEqual([
+                { name: 'category1', upper: 'CATEGORY1', schemas: ImmutableArray.of([schema1]) },
+                { name: 'category2', upper: 'CATEGORY2', schemas: ImmutableArray.of([schema2]) },
+                { name: 'category3', upper: 'CATEGORY3', schemas: ImmutableArray.empty() }
+            ]);
+        });
+
+        it('should not remove category with schemas', () => {
+            schemasState.addCategory('category1');
+
+            const categories = getCategories(schemasState);
+
+            expect(categories!).toEqual([
+                { name: 'category1', upper: 'CATEGORY1', schemas: ImmutableArray.of([schema1]) },
+                { name: 'category2', upper: 'CATEGORY2', schemas: ImmutableArray.of([schema2]) }
+            ]);
         });
 
         it('should remove category', () => {
-            schemasState.removeCategory('category1');
+            schemasState.addCategory('category3');
+            schemasState.removeCategory('category3');
 
-            expect(schemasState.snapshot.categories).toEqual({ 'category2': false });
+            const categories = getCategories(schemasState);
+
+            expect(categories!).toEqual([
+                { name: 'category1', upper: 'CATEGORY1', schemas: ImmutableArray.of([schema1]) },
+                { name: 'category2', upper: 'CATEGORY2', schemas: ImmutableArray.of([schema2]) }
+            ]);
         });
 
         it('should return schema on select and reload when already loaded', () => {
@@ -482,4 +519,14 @@ describe('SchemasState', () => {
             });
         });
     });
-});
\ No newline at end of file
+});
+
+function getCategories(schemasState: SchemasState) {
+    let categories: SchemaCategory[];
+
+    schemasState.categories.subscribe(result => {
+        categories = result;
+    });
+
+    return categories!;
+}
diff --git a/src/Squidex/app/shared/state/schemas.state.ts b/src/Squidex/app/shared/state/schemas.state.ts
index 68c3ea6d5..87dea5d3c 100644
--- a/src/Squidex/app/shared/state/schemas.state.ts
+++ b/src/Squidex/app/shared/state/schemas.state.ts
@@ -38,7 +38,7 @@ type AnyFieldDto = NestedFieldDto | RootFieldDto;
 
 interface Snapshot {
     // The schema categories.
-    categories: { [name: string]: boolean };
+    categories: string[];
 
     // The current schemas.
     schemas: SchemasList;
@@ -54,8 +54,7 @@ interface Snapshot {
 }
 
 export type SchemasList = ImmutableArray<SchemaDto>;
-
-export type Categories = { [name: string]: boolean };
+export type SchemaCategory = { name: string; schemas: SchemasList; upper: string; };
 
 function sameSchema(lhs: SchemaDetailsDto | null, rhs?: SchemaDetailsDto | null): boolean {
     return lhs === rhs || (!!lhs && !!rhs && lhs.id === rhs.id && lhs.version === rhs.version);
@@ -68,7 +67,7 @@ export class SchemasState extends State<Snapshot> {
     }
 
     public categories =
-        this.project2(x => x.categories, x => sortedCategoryNames(x));
+        this.project2(x => x, x => buildCategories(x.categories, x.schemas));
 
     public selectedSchema =
         this.project(x => x.selectedSchema, sameSchema);
@@ -90,7 +89,7 @@ export class SchemasState extends State<Snapshot> {
         private readonly dialogs: DialogService,
         private readonly schemasService: SchemasService
     ) {
-        super({ schemas: ImmutableArray.empty(), categories: buildCategories({}) });
+        super({ schemas: ImmutableArray.empty(), categories: [] });
     }
 
     public select(idOrName: string | null): Observable<SchemaDetailsDto | null> {
@@ -126,9 +125,7 @@ export class SchemasState extends State<Snapshot> {
                 return this.next(s => {
                     const schemas = ImmutableArray.of(items).sortByStringAsc(x => x.displayName);
 
-                    const categories = buildCategories(s.categories, schemas);
-
-                    return { ...s, schemas, isLoaded: true, categories, canCreate };
+                    return { ...s, schemas, isLoaded: true, canCreate };
                 });
             }),
             shareSubscribed(this.dialogs));
@@ -140,9 +137,7 @@ export class SchemasState extends State<Snapshot> {
                 this.next(s => {
                     const schemas = s.schemas.push(created).sortByStringAsc(x => x.displayName);
 
-                    const categories = buildCategories(s.categories, schemas);
-
-                    return { ...s, schemas, categories };
+                    return { ...s, schemas };
                 });
             }),
             shareSubscribed(this.dialogs, { silent: true }));
@@ -163,7 +158,7 @@ export class SchemasState extends State<Snapshot> {
 
     public addCategory(name: string) {
         this.next(s => {
-            const categories = addCategory(s.categories, name);
+            const categories = [...s.categories, name];
 
             return { ...s, categories: categories };
         });
@@ -171,7 +166,7 @@ export class SchemasState extends State<Snapshot> {
 
     public removeCategory(name: string) {
         this.next(s => {
-            const categories = removeCategory(s.categories, name);
+            const categories = s.categories.filter(x => x !== name);
 
             return { ...s, categories: categories };
         });
@@ -309,9 +304,7 @@ export class SchemasState extends State<Snapshot> {
                 schema :
                 s.selectedSchema;
 
-            const categories = buildCategories(s.categories, schemas);
-
-            return { ...s, schemas, selectedSchema, categories };
+            return { ...s, schemas, selectedSchema };
         });
     }
 
@@ -328,46 +321,32 @@ function getField(x: SchemaDetailsDto, request: AddFieldDto, parent?: RootFieldD
     }
 }
 
-function buildCategories(categories: { [name: string]: boolean }, schemas?: SchemasList) {
-    categories = { ...categories };
+function buildCategories(categories: string[], schemas: SchemasList): SchemaCategory[] {
+    const uniqueCategories: { [name: string]: string } = {};
 
-    for (let category in categories) {
-        if (categories.hasOwnProperty(category)) {
-            if (!categories[category]) {
-                delete categories[category];
-            }
-        }
+    for (let category of categories) {
+        uniqueCategories[category] = category;
     }
 
-    if (schemas) {
-        for (let schema of schemas.values) {
-            categories[schema.category || ''] = false;
-        }
+    for (let schema of schemas.values) {
+        uniqueCategories[schema.category || 'Schemas'] = schema.category;
     }
 
-    return categories;
-}
-
-function addCategory(categories: Categories, category: string) {
-    categories = { ...categories };
-
-    categories[category] = true;
+    const result: SchemaCategory[] = [];
 
-    return categories;
-}
+    for (let name in uniqueCategories) {
+        if (uniqueCategories.hasOwnProperty(name)) {
+            const key = uniqueCategories[name];
 
-function removeCategory(categories: Categories, category: string) {
-    categories = { ...categories };
+            result.push({ name, upper: name.toUpperCase(), schemas: schemas.filter(x => isSameCategory(key, x))});
+        }
+    }
 
-    delete categories[category];
+    result.sort((a, b) => compareStringsAsc(a.upper, b.upper));
 
-    return categories;
+    return result;
 }
 
-function sortedCategoryNames(categories: Categories) {
-    const names = Object.keys(categories);
-
-    names.sort(compareStringsAsc);
-
-    return names;
+export function isSameCategory(name: string, schema: SchemaDto): boolean {
+    return (!name && !schema.category) || schema.category === name;
 }
\ No newline at end of file