Assume I have 5 licences for Test Studio (100 users for each). I need execute tests for 500 users. Assumption is that I use the 5 machines (100 users on each). It can be done manually by execute test for 100 users on the each computer. But if I want manage test from one station, can I use the users from other licences, or I have to by additional VU for specific license? Additional I have to buy four Runtime licences if I want to execute test from one machine (on the other four machines, test will be called)?