Connect board via this logic with Subitems?

Hi
We are making our assignments at the subitem level and are looking to stand up an employee directory with available hours, used hours, occupancy, etc. based on the duration and timeline within our project board. We can auto-connect any assigned items at the parent level to the directory but we can’t do the same with subitem people columns. Does anyone know a work around for this automation in subitems? Thanks!
Screenshot 2024-05-06 144904