@m_adam is it possible to add a gadget like the top controller of a palette ？but not a window gadget like object manager window on the right-top corner.
think you very much!

@m_adam thanks, i would have a try

the shortcut, p key, a sanp popup havs a controller on the top of popup menu to dock menu.When I hold the shortcut down, the snap popup appears, and move the cursor to position of a command on the popup menu(without clicking on popup menu), and release the shortcut, the command executes。How can I make these properties. I had a try on "c4d.gui.ShowPopupDialog", but it must to have a click on command on the popoup menu to execute.