There is a list of Grid plugins in the Grid User's Guide, which is linked on the Grid download page here on WoWI. You're probably looking for something in the Layout Plugins category:
http://www.wowace.com/addons/grid/pa...-grid-plugins/
As for which plugin would best suit your needs, I have no idea, as I've never had any need for or interest in any such plugins. If you can't find one that does what you need, you could always just switch between the profiles manually or with a macro.