Close buttons on toolbars, similar to Jobs toolbar

The Jobs Bar (Preferences\File Operations\Progress Indicators\Jobs bar) has a little close button. Can this little close button be added to other toolbars? Not for Menus or Operations but for Images, Applications, Office, Office365, OpenOffice. So everybody can get rid quickly of these toolbars when they aren't used any more:

A button with Toolbar CLOSE NAME=*this will close the toolbar it is on.

(*this is a special name so you don't have to edit the command for every toolbar.)

Yes, it's a solution. The close button would only look smaller. Thanks.

You can use any size of icon that you want for the button.

I used 8px! :ok_hand: