At the moment i believe the only option is to go to Cubase 8 and hold off 8.5. This problem has plagued me and is the reason I went back to 6.5.
You can hover over the plugin name and it usually pops up. Waste of time Imo. To have an overview of your mixer is a no go because you have to enlarge the mixer channels’ width so wide that your number of visible channels gets diminished. It also looks stupid.