I came across this post and wondered if there is a way to activate only a few of all of my installed plugins depending on the workspace I currently work in.
For example
Maybe you can achieve your goal but it needs lots of "customization work" so I would not do it for myself :)
"-data _workspacedir_ -vmargs -Dorg.eclipse.equinox.p2.reconciler.dropins.directory=_dropindir_"
in the shortcut.Note that in this case you cannot switch workspace within Eclipse, you have to close the current one and start the new one using the corresponding shortcut.
UPDATE: I have found some Eclipse feature request for making this kind of setup easier if they will be implemented: