Just a small one that help somewhat on CPU intensive projects with lot of vst instruments.
some time when moving through tracks on project window or Mix console, if “enable record on selected midi tracks” is selected in preferences,the Asio meter can jump when Midi /vst instrument track are record enabled automatically.
so assigning a Key command that toggle that preference(enable record on selected midi tracks) should help to quickly toggle, and avoid arming midi tracks when not on recording progress.(while mixing, or getting ideas of sounds etc…)