NBU license

Hello experts

In one of our new data centers i have a windows based master server NBU 7.5, and 8 NBU 5220 2.5. problem is i dnt know whether we have capacity based license or not. 1)  is there any command i can find out various license keys and details for NBU master. 2) is there any command for NBU appliance i can find out various license keys and details whether it is capacity based and how many tape drives n robots it can support.