diff --git a/src/factories/ManagerFactory.ts b/src/factories/ManagerFactory.ts
index 34fb15c..0762969 100644
--- a/src/factories/ManagerFactory.ts
+++ b/src/factories/ManagerFactory.ts
@@ -12,6 +12,7 @@ import { ResizeHandleManager } from '../managers/ResizeHandleManager';
 import { EdgeScrollManager } from '../managers/EdgeScrollManager';
 import { DragHoverManager } from '../managers/DragHoverManager';
 import { CalendarManagers } from '../types/ManagerTypes';
+import { HeaderManager } from '../managers/HeaderManager';
 
 /**
  * Factory for creating and managing calendar managers with proper dependency injection
@@ -45,6 +46,7 @@ export class ManagerFactory {
     const resizeHandleManager = new ResizeHandleManager();
     const edgeScrollManager = new EdgeScrollManager(eventBus);
     const dragHoverManager = new DragHoverManager(eventBus);
+    const headerManager = new HeaderManager();
     
     // CalendarManager depends on all other managers
     const calendarManager = new CalendarManager(
@@ -68,7 +70,8 @@ export class ManagerFactory {
       allDayManager,
       resizeHandleManager,
       edgeScrollManager,
-      dragHoverManager
+      dragHoverManager, 
+      headerManager
     };
   }
 
@@ -79,9 +82,8 @@ export class ManagerFactory {
 
     try {
       await managers.calendarManager.initialize?.();
-      if (managers.resizeHandleManager && managers.resizeHandleManager.initialize) {
-        managers.resizeHandleManager.initialize();
-      }
+      await managers.resizeHandleManager.initialize?.();
+
     } catch (error) {
       throw error;
     }
diff --git a/src/managers/CalendarManager.ts b/src/managers/CalendarManager.ts
index 1777050..d316c19 100644
--- a/src/managers/CalendarManager.ts
+++ b/src/managers/CalendarManager.ts
@@ -113,31 +113,7 @@ export class CalendarManager {
             view: this.currentView
         });
     }
-
-    /**
-     * Genindlæs calendar data
-     */
-    public refresh(): void {
-
-        this.eventBus.emit(CoreEvents.REFRESH_REQUESTED, {
-            view: this.currentView,
-            date: this.currentDate
-        });
-    }
-
-    /**
-     * Ryd calendar og nulstil til standard tilstand
-     */
-    public reset(): void {
-
-        this.currentView = 'week';
-        this.currentDate = new Date();
-
-        this.eventBus.emit(CoreEvents.REFRESH_REQUESTED, {
-            view: this.currentView,
-            date: this.currentDate
-        });
-    }
+  
 
     /**
      * Setup event listeners for at håndtere events fra andre managers
@@ -147,54 +123,12 @@ export class CalendarManager {
         this.eventBus.on(CoreEvents.WORKWEEK_CHANGED, (event: Event) => {
 
             const customEvent = event as CustomEvent;
-            this.handleWorkweekChange();
+           // this.handleWorkweekChange();
 
         });
     }
 
-    /**
-     * Beregn næste dato baseret på aktuel view
-     */
-    private calculateNextDate(): Date {
-        const nextDate = new Date(this.currentDate);
-
-        switch (this.currentView) {
-            case 'day':
-                nextDate.setDate(nextDate.getDate() + 1);
-                break;
-            case 'week':
-                const workWeekSettings = calendarConfig.getWorkWeekSettings();
-                nextDate.setDate(nextDate.getDate() + 7); // Move to next calendar week regardless of work days
-                break;
-            case 'month':
-                nextDate.setMonth(nextDate.getMonth() + 1);
-                break;
-        }
-
-        return nextDate;
-    }
-
-    /**
-     * Beregn forrige dato baseret på aktuel view
-     */
-    private calculatePreviousDate(): Date {
-        const previousDate = new Date(this.currentDate);
-
-        switch (this.currentView) {
-            case 'day':
-                previousDate.setDate(previousDate.getDate() - 1);
-                break;
-            case 'week':
-                const workWeekSettings = calendarConfig.getWorkWeekSettings();
-                previousDate.setDate(previousDate.getDate() - 7); // Move to previous calendar week regardless of work days
-                break;
-            case 'month':
-                previousDate.setMonth(previousDate.getMonth() - 1);
-                break;
-        }
-
-        return previousDate;
-    }
+   
 
     /**
      * Calculate the current period based on view and date
diff --git a/src/types/ManagerTypes.ts b/src/types/ManagerTypes.ts
index 3ab080a..cc31b2a 100644
--- a/src/types/ManagerTypes.ts
+++ b/src/types/ManagerTypes.ts
@@ -16,6 +16,7 @@ export interface CalendarManagers {
   resizeHandleManager: ResizeHandleManager;
   edgeScrollManager: unknown; // Avoid interface conflicts
   dragHoverManager: unknown; // Avoid interface conflicts
+  headerManager: unknown; // Avoid interface conflicts
 }
 
 /**