Unwieldy Tracker - Sample pools

[Grids]

Hi I am confused with sample pools in Unwieldy Tracker 2.

So I load samples into pools. How do I access them. It says they can be accessed by C9-E8. I tried C9. But it just plays a high pitch of my first sample. I am missing something. Can anyone shed some light as I would like to use this for round robin samples.

[synthphase]

It means sample number C9 - E8. Just put in your note at C4 and change the sample to C9 to select pool 0. It doesn't do round-robin AFAIK though, just randomly selects a sample.