Limit user account creation for delegated admin

Hi everyone ,

i hope you are doing well , so we are trying to start new project = buy nextcloud as ( storage as service ) and we we notice that we are much limited if you can help please

i want know the possibility of :

  • limiting the admin of the client company in the creation of users account ( we will buy sale this solution by useraccount + quota per group
  • The ability to limit users by group
  • The ability to limit the client by storage quota
  • The ability to limit the client by storage quota
  • The ability to limit file sizes per user or group

BR .