For each finished plugin that I have, I have another version of it that I add new features too. This makes for a cluttered list. Would it be possible to group plugins together so that in the plugins menu you can click a button to expand one list of plugins, and another button would expand the other list.
I didn't exactly know what you mean but a change in the plugin handling isn't planned.
No change in the handling, just a way to organize long lists of plugin url's in the plugin manager.
Nearly nobody will have so much plugins that it must be grouped in the list (except you :)