disper : Disper is an on-the-fly display switch utility ( http://willem.engen.nl/projects/disper/ )
disper-indicator : Disper-indicator is an UI for the display switch utility disper ( https://launchpad.net/~nmellegard/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a espenaf
For Paludis use this rsync : rsync://gentoo.zugaina.org/espenaf-portage
If you have a problem : ycarus(-at-)zugaina.org