I recently thought how cool it would be if Cubase had a command line interface, where you could instruct and automate Cubase without the need of much mouse acrobatics. Kinda like the bash on Linux or the powershell on Windows. Actually, a powershell-like shell would be preferable, I think, as the way PS handles objects lends itself better for a DAW. Fully programmable, which could also replace the cumbersome current macro system.
You could open that command line with a specific key command and just type command that do things to track, events, MIDI and everything else.
Think of Logical Editor functionality on a command line:
get-midievent -type note -value1 “C1” | set-midievent -value2 (get-random -between 100,120)
You should of course be able to write functions and call them via key command.
Full disclosure: my main profession is a linux system admin