Recoverpoint command line usage - resizing a protection group (5.0SP1)

We using an old recoverpoint at our site. (5.0SP1) 

GUI isnt accessible for some reason.

My question:
1. How can i resize the protection group from cli? Do you know what are the exact steps? 

LUNs are resized on the VNX side, but we doesnt resized from recoverpoint side.

Please help us if you did it previously. Thanks a lot!