I don't think so, there is an option which can say like that. The time you exhaust your license count - it generally gives you some kind of warning.
You are expected to know how many licences for point products that your own from your yearly grant renewal, this being the licence number (from the downloads section) you inputted when installing 4.5
This info in epo 4.5 IS reported back to Mcafee
They say if you exceed your licences they will "work with you" to resolve the issue ( see the FAQ pdf here for detail)
hope this clarifies