Hello, 1. Initialization: procedure TMainForm.UniFormCreate(Sender: TObject); begin UniListBox1.JSInterface.JSConfig('ddReorder', [True]); end; 2. Settings: procedure TMainForm.UniFormReady(Sender: TObject); begin UniListBox1.JSInterface.JSAssign('dropZone.isTarget', [False]); //Disable reorder... UniListBox2.JSInterface.JSCode( 'Ext.create("Ext.dd.DropTarget", '#1'.getEl(), {'+ ' ddGroup: '+ UniListBox1.JSName +'.dropZone.ddGroup,'+ ' notifyDrop: function(