I know Abelton very well, no fear. 
But I really never needed this function for chords, bass lines and melodies = I use it ONLY for Drums (like in Cubase!)
Your FR blocks the composition process without end in this area. (for me)
P.S: I am not a Techno Dance Producer with stupid repeating notes e.g. - but everyone works differently. No problem.
So, please accept that I do not need this function in cubase and vote against it.
There is much more important what cubase is still missing in my opinion. 
C.