This is my work around based on @raino answer:
-Draw a long midi note line
-select the scissors tool, then press Alt + click on a 1/16 note, and you get all 1/16 notes
-Use LE to set random velocity from 0 to 100.
-Go to Midi>Functions>Delete notes and delete notes below 50 velocity
-Use LE and set all the remaining notes at 100 in velocity
-Bonus: go to LE and randomize velocity +/-10 for “humanizing”
Thanks!