This isn't really any help to you, in terms of what you're looking for, but have you noticed that when you click on a track the instrument rack (F11) scrolls to display the currently active synth?
having said that, it's probably easier to click to edit the synth in the inspector than to click the edit button in the rack.
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Windows 7, 64 bit 16Gb, Intel i7-4770
Cubase 7.0 & 7.5, Focusrite Scarlett 2i4 soundcard, Stylus RMX, Trilian, Omnisphere, Nexus, Vanguard, GPO, EWQLS Choirs, Kontakt 5, Kenton Kontrol Freak, Korg Nano Kontrol (1), M-Audio 88-es kybd, Camelspace, Vengeance VPS Glitch *witch* & VPS Philta XL, a shelf full of manuals and lots of other bits to try & make music with.