License usage control?

Hello!

In our company, we have 3-4 installations, but we use 2 computers.

In some cases other computer is needed, so we turn off the program wait 10 min, to turn on some other installation. But we have over usage added in some cases. Is there some little program that can maintain the usage so not to have over usage ?

Some kind of prohibition for turning on the program if there are 10 min since the program is used on some other computer?