Making WorkSpace and WorkSet Creation "Read Only"

Is there a way to turn off a user's ability to create WorkSpaces and WorkSets? Since the creation of them is in a drop down on the very first screen that users see, we're worried about everybody having that ability and the inevitable "Oops, I made a new WorkSpace," problems that will come with it.

Is there a variable we can set during the install of ORD on a user's machine that would turn off their ability to create them?

Thanks,
Chris