Having Day licenses, whats the process to utilize them only during tests

Hi Team,

I have ordered a 5 day licenses, but got them in a single file and issue is I am at client place and few more ppl access the same Controller.
I wnat to control my license such a away that when ever i have a test I can access my lic file and later have the free 50 VU during scripting. Need steps to do that to avoid any issues.

Thanks in advance, quick help needed.