Press an Accessory button in ListView item header

I am using This custom Listview application. I wanted to Add 2 Buttons in the header of each item. Apparently that is not possible ? The custom Header only gives One TextButton, the accessory button is unclickable for some reason

The below event procedure dose not get triggered when I press the Accessory button (in item header). However, it works with TextButton

procedure TForm1.ListView1ItemClickEx(const Sender: TObject;
    ItemIndex: Integer; const LocalClickPos: TPointF;
    const ItemObject: TListItemDrawable);
  begin

       ShowMessage(ItemObject.Name);
  end;

Problem is : Trigger a ShowMessage() if an Accessory button in the Item header was pressed. Or, How to add 2 TextButtons in the Item Header.

Notes : The Listview item ItemAppearance is Dynamic Appearance and the Header appearance is Custom. Make sure to set the Accessory button visibility to True.