Project Owners can edit their ressource quotas and limits of their projects

Hi all,
in our Rancher 2.3.2 environment, our customers are able to edit their project ressources (ressource quotas and ressource limits) by themselves using Rancher UI.
As we our billing model is based on reserved ressources (vCPU, Memory) this should only be done by cluster owners or admins.
Is there a way to change this behaviour?
If not, can you fix this in the next release?

Thank you.

Deutsche Telekom IT