Set Nudge Value to 1/16 Triplet (1/24)

Sets the nudge value (amount of time an event or transient will be moved ‘later’) to create a 1/16 note triplet feel. This is equvalent to 1/24 of a bar.

Move regions in Logic Pro — Apple Support

You can nudge regions (move them in small increments) left or right using key commands. To nudge regions, you first set the nudge value, then move selected regions by this value. Alternatively, you can nudge regions by a set value.