Seems like there should be an easy fix for this:

Let's say I have an Ableton session cued up on the left deck in Serato. I stop the right turntable, which is playing a track from the Serato library.

- Next, I start triggering sounds from a drum rack in my Ableton session.
- I want to drop a clip in on time, or "on the one" off of my drum rack work. Since the left record is moving, it is by default moving the progress bar across the grid in the Arrangement view. How do I make sure that when I start the clip, it starts on the one, rather than whatever random place on the grid it may be at the time?

Please forgive me if this is a novice question, but I just can't figure this one out.
Anybody have an answer?