Hi guys, I saw a tutorial where a guy was creating a glissando with the Harp.
So he played all the white keys, and after he clicked on the piano roll (keyboard) to change F to F#.
But whit a key command that he didn’t tell, he selected all the F in the range of the harp only by clicking on the keyboard in the piano roll, I mean F2 - F3 - F4 and changed it into F#2 - F#3 - F#4.
I know the commando how to change one step below or octave, but how can I select all the note without click on every F?
Shift + S = select similar notes. Then you can use use Option + Arrow up to got from F to F# on all those notes. 
Which video is that? Could you share it, I’m interested to have a look.
Other than what Mike shared, it could be a custom MIDI Transformer set too.
Thank you Mike it’s Shift + S, @Venn I bought on Udemy and the guy answer now after a month hahaha
but yes it works 
Another cool thing you can try is “scale quantize” in the piano roll.
Yes it’s a cool feature, but never used in my works 
don’t tell me why ahhaha