Hi,   Can you try this approach for now?!: procedure TMainmForm.UnimMenu1Click(Sender: TUnimMenuItem); begin   case Sender.ButtonId of     0: Begin          UnimMenu1.Visible := False;          frmForm2.Show(            procedure (Sender: TComponent; AResult:Integer)            begin              UniSession.AddJS('Ext.Viewport.setMenu('+                '' + UnimMenu1.JSName + ',' +                '{  side: "right",'+                '  reveal: true'+                '});');            end