How Randomize without Quantize?

Hi all, I´ve ran into a small problem…I need to randomize selected midi notes´position without any influence from the grid, since the stuff I do right now have no grid or specified tempo.

Tried Logical editor where selected events are to be moved xx relative random ticks but that results in the whole batch of notes being randomly moved the same amount…

A little stumped right now…can someone help?

Thanks a lot!