Pets/Followers 3.0 Command Help

So i have this pet/follower addon for my gmod TTT server. It allows you to buy pet from the pointshop and it follows you around(duh). It alos has this command fo_control that allows you to control your pet yourself and fly around as it. How can i make it so this command only works before and after rounds depending on what group your in. Like i want normal people to not be able to sue it, VIP people to be able to use it before and after rounds, and then amdin can use it whenever. Anyone know how i can do this.

[editline]30th August 2014[/editline]

Also since this command has to be typed into the console (this little button thing ~) it isnt on the ULX menu.

You learn Lua.