How to derive the initial positions of different mimic actions?

<img width="738" height="288" alt="Image" src="https://github.com/user-attachments/assets/7ee5b952-2e7d-4875-b19e-a476326a4979" />

How to derive this initial positions of different mimic actions like the one in the screenshot if I add my own mimic model in the yaml file?