Multiple version of PHP (more then 2)

[Matjaž]

I have currently version 4.4.7 and 5.2, but I also need a third one 5.3.
How can I register new PHP version to plesk, so I can choose from 4.4.7, 5.2 or 5.3.
Is it possible to have more then 2 versions registered in plesk?
How to do that?