The thing I really miss in Cubase is a complete VSDT plugin/Instrument Manager, a way to create and manage folder or to catagorize plugins.
e.g mapping for synths, drums, samplers etc and categorize plugins/effects.
And for instruments in Media Tab a complete list of instruments (not only the Steinberg instruments) and an option to show/hide an instrument in the list
Such an option would be very helpfull.