How do I set up fine adjustment for the Logic pointer tool?

Hi,

New user here! I've searched everywhere for info on this, but can't find anything.

Is there a key press I can use to make the pointer tool in Logic Pro X make fine adjustments? For example, I wanted to set the start and stop points of a sample in Quick Sample by dragging on the location figures in the bar beneath the waveform. Even with fine movements it jumps too far.

This is a simple as a key press in Ableton Live and I'm hoping it's the same here. Thanks for any help!

PETE