Thanks; I only need to finish the help manuals and fix one more issue and it'll be ready for release. I'll also be sending out the next wave of betas very soon, hopefully by tonight, to make sure there are no more issues.
The generator is now host-only; I was going to make it so that Super Admins can still use it, but I couldn't get the brick generation to work. I can update it later on to support this, but for now restrictions have been built in to prevent anyone but the server host from opening the GUI or from executing server commands.