I have now finished fixing the broken commands for lot manangement. We had a temporary solution for adding members, but the command for snow fall and ice formation was still broken. I now made a new command with the all-new plugin-like code structure this was even easier.
How does it work? Well, check the userlevels & commands section or use the not yet finished but working brand-new help system: Type /helpme (new, also known as /shophelp) and find out!