Dialog box #1. It does similar to the trim function but on a fixed tick duration based on user input (e.g. if user inputs “2”, the 2nd note gets trimmed +2 ticks from the first note, 3rd note gets +4 ticks trim, +6, +8, +10)
Dialog box#2 has the option to do it strum upwards (trimming from low note upwards,) strum downwards (trim high note to low), then alternate does up and down every other chord.
Dialog box#3 uses velocity multipliers. Though I personally don’t use this often (almost always 0), it separates velocity values from the first note.
The script also prevents you from executing if you have more than 6 notes (strings) at the same time.
Here’re LE presets as an example for a 4 note upward strum. Save them in your Logical Editor preset folder. (you didn’t say which version you’re on, but the info is on the SB website.)
If the end of the note should remain at its former place use a line in the Logical Editors’ Transform Actions to subtract length
For velocity use Value 2 and subtract.