I am having this same issue. Network Activation of this plugin gives all users (regardless of permissions) access to the configuration user interface for Cas Maestro.. which is obviously a disaster for multi-site installations.
Is there a possibility we could limit the appearance of this configuration UI to super admins in the next Cas Maestro release or commit to GitHub??
This would be much appreciated as a fix from my side would not 100% ensure upgrade portability.