diff --git a/packages/dockview/src/api/groupPanelApi.ts b/packages/dockview/src/api/groupPanelApi.ts
index 1d41cfa1d..bdcc5ff1b 100644
--- a/packages/dockview/src/api/groupPanelApi.ts
+++ b/packages/dockview/src/api/groupPanelApi.ts
@@ -7,6 +7,10 @@ export interface TitleEvent {
     title: string;
 }
 
+export interface SuppressClosableEvent {
+    suppressClosable: boolean;
+}
+
 /*
  * omit visibility modifiers since the visibility of a single group doesn't make sense
  * because it belongs to a groupview
@@ -15,9 +19,10 @@ export interface IDockviewPanelApi
     extends Omit<IGridviewPanelApi, 'setVisible' | 'visible'> {
     readonly group: GroupviewPanel | undefined;
     readonly isGroupActive: boolean;
+    readonly title: string;
+    readonly suppressClosable: boolean;
     onDidDirtyChange: Event<boolean>;
     close: () => Promise<boolean>;
-    tryClose: undefined | (() => Promise<boolean>);
     interceptOnCloseAction(interceptor: () => Promise<boolean>): void;
     setTitle(title: string): void;
 }
@@ -38,6 +43,12 @@ export class DockviewPanelApi
     readonly _onDidTitleChange = new Emitter<TitleEvent>();
     readonly onDidTitleChange = this._onDidTitleChange.event;
 
+    readonly _titleChanged = new Emitter<TitleEvent>();
+    readonly titleChanged = this._titleChanged.event;
+
+    readonly _suppressClosableChanged = new Emitter<SuppressClosableEvent>();
+    readonly suppressClosableChanged = this._suppressClosableChanged.event;
+
     // get isGroupVisible() {
     //     return this._isGroupVisible;
     // }
@@ -46,6 +57,14 @@ export class DockviewPanelApi
         return this._interceptor;
     }
 
+    get title() {
+        return this.panel.params?.title || '';
+    }
+
+    get suppressClosable() {
+        return !!this.panel.params?.suppressClosable;
+    }
+
     get isGroupActive() {
         return !!this.group?.isActive;
     }
diff --git a/packages/dockview/src/dockview/options.ts b/packages/dockview/src/dockview/options.ts
index ca672b5e6..c071dfeac 100644
--- a/packages/dockview/src/dockview/options.ts
+++ b/packages/dockview/src/dockview/options.ts
@@ -49,11 +49,6 @@ export interface ViewFactoryData {
 }
 
 export interface DockviewOptions extends DockviewRenderFunctions {
-    // viewFactory: (
-    //     id: string,
-    //     data: ViewFactoryData,
-    //     options: DockviewRenderFunctions
-    // ) => IGroupPanelView;
     watermarkComponent?: WatermarkConstructor;
     watermarkFrameworkComponent?: any;
     frameworkComponentFactory?: GroupPanelFrameworkComponentFactory;
diff --git a/packages/dockview/src/groupview/groupPanel.ts b/packages/dockview/src/groupview/groupPanel.ts
index fe81c2cec..0cd348d43 100644
--- a/packages/dockview/src/groupview/groupPanel.ts
+++ b/packages/dockview/src/groupview/groupPanel.ts
@@ -22,6 +22,7 @@ export interface IGroupPanel extends IDisposable, IPanel {
     readonly view?: IGroupPanelView;
     readonly group?: GroupviewPanel;
     readonly api: IDockviewPanelApi;
+    readonly params?: IGroupPanelInitParameters;
     updateParentGroup(group: GroupviewPanel, isGroupActive: boolean): void;
     setDirty(isDirty: boolean): void;
     close?(): Promise<boolean>;
@@ -44,12 +45,16 @@ export class GroupPanel extends CompositeDisposable implements IGroupPanel {
 
     readonly api: DockviewPanelApi;
     private _group: GroupviewPanel | undefined;
-    private params?: IGroupPanelInitParameters;
+    private _params?: IGroupPanelInitParameters;
 
     readonly onDidStateChange: Event<void>;
 
     private _view?: IGroupPanelView;
 
+    get params() {
+        return this._params;
+    }
+
     get group(): GroupviewPanel | undefined {
         return this._group;
     }
@@ -63,7 +68,6 @@ export class GroupPanel extends CompositeDisposable implements IGroupPanel {
         private readonly containerApi: DockviewApi
     ) {
         super();
-
         this.api = new DockviewPanelApi(this, this._group);
         this.onDidStateChange = this.api.onDidStateChange;
 
@@ -95,7 +99,7 @@ export class GroupPanel extends CompositeDisposable implements IGroupPanel {
     }
 
     public toJSON(): GroupviewPanelState {
-        const params = this.params?.params;
+        const params = this._params?.params;
         const state = this.api.getState();
 
         return {
@@ -103,22 +107,44 @@ export class GroupPanel extends CompositeDisposable implements IGroupPanel {
             view: this.view!.toJSON(),
             params:
                 params && Object.keys(params).length > 0 ? params : undefined,
-            title: this.params?.title as string,
-            suppressClosable: this.params?.suppressClosable,
+            title: this._params?.title as string,
+            suppressClosable: this._params?.suppressClosable,
             state: state && Object.keys(state).length > 0 ? state : undefined,
         };
     }
 
-    public update(params: PanelUpdateEvent): void {
-        if (this.params) {
-            this.params.params = { ...(this.params?.params || {}), ...params };
+    public update(params: PanelUpdateEvent<IGroupPanelInitParameters>): void {
+        let didTitleChange = false;
+        let didSuppressChangableClose = false;
+
+        const innerParams = params.params as IGroupPanelInitParameters;
+
+        if (this._params) {
+            didTitleChange = this._params.title !== innerParams.title;
+            didSuppressChangableClose =
+                this._params.suppressClosable !== innerParams.suppressClosable;
+
+            this._params.params = {
+                ...(this._params?.params || {}),
+                ...params,
+            };
+        }
+
+        if (didTitleChange) {
+            this.api._titleChanged.fire({ title: innerParams.title });
+        }
+
+        if (didSuppressChangableClose) {
+            this.api._suppressClosableChanged.fire({
+                suppressClosable: !!innerParams.suppressClosable,
+            });
         }
 
         this.view?.update(params);
     }
 
     public init(params: IGroupPanelInitParameters): void {
-        this.params = params;
+        this._params = params;
         this._view = params.view;
 
         if (params.state) {
diff --git a/packages/dockview/src/panel/types.ts b/packages/dockview/src/panel/types.ts
index 96f10c8fd..0667a9815 100644
--- a/packages/dockview/src/panel/types.ts
+++ b/packages/dockview/src/panel/types.ts
@@ -14,15 +14,15 @@ export interface PanelInitParameters {
     state?: State;
 }
 
-export interface PanelUpdateEvent {
-    params: Parameters;
+export interface PanelUpdateEvent<T extends Parameters = Parameters> {
+    params: Partial<T>;
 }
 
 export interface IPanel extends IDisposable {
     readonly id: string;
     init(params: PanelInitParameters): void;
     layout(width: number, height: number): void;
-    update(event: PanelUpdateEvent): void;
+    update(event: PanelUpdateEvent<Parameters>): void;
     toJSON(): object;
     focus(): void;
 }