Hi Ukyrona,
I have recently published a vRO workflow on flowgrab that I wrote to manage resource pool share allocations for nested resource pools. It is based on the single-level resource pool share management powershell script that Duncan Epping published on the earlier linked blog post, but has been adapted to parse resource pool hierarchies settings values on all resource pools.
This vRO workflow can;
Heres a link to the project on flowgrab; FlowGrab: View Project