floatingbbar is another library written on top of the Notifier Widget. It provides button bars that pop up from one side of the screen when the mouse hoovers over them.

Description:The floatingbbar library implements a new Tcl/Tk widget that presents itself as an (animated) floating button bar that pops up from one of the side of the screen in a direction that can be chosen. The floatingbbar features any number of buttons
Contact:Emmanuel Frecon, see web site