PSM doesn't require admin rights for any feature.
Not 100% sure if it is related, but we have identified an issue with page size matching that is not consistently reproducible in all environments. This issue is scheduled to be fixed in 7.2.7.
It may take quite some time before we can officially release 7.2.7, but I can upload a beta version for the client so she can confirm whether it is fixed. I'll send a private message on this forum when it's available, but please note that I won't be able to spend time on it before Monday.