Hi sun-youth,
Let's clear the access first.

Not to start a discussion here, NOT the place, but to give you a starting point:
The simplest XPresso will work in a limited way and would require storing the points in objects.
A more specialized setup would work with the Point numbers in a Python-based List and call up the vector data for points only. (Python is discussed in the Developer Café, not at Cineversity.
Either way, many options in PoseMorph would require a lot of work. I do not see a real advantage in it.

Screen Shot 2023-10-31 at 10.27.26 AM.jpg
However, the PoseMorph stores only Point values anyway (if that is the selected mode). To go with a lot of work and try to squeeze a few milliseconds out of the process seems counterintuitive.

You might check the Cluster options instead. Again, this is not the place for any further discussion.

All the best

Anyway, I hope the access is soon cleared for you, and you can ask in the F&Q, not here please. Thank you.