Installing multiple licenses onto single machine

Unity Engine
1

I personally have a IOS PRO unity 3 license. But a client has given me a Android Unity 3 license in order to convert a game to that platform. Can i install both licenses onto same machine?

Or should i try to install unity 3 twice (by renaming directories etc).

2

I am in this same situation, does anyone know?

3

You can add the number, just go to help menu in Unity and add that license code.

4

Awesome, thanks!