Silent installation - selection of different Feature Types

I want to be able to install my SW on four different platforms, and I have four Feature Types (in addition to the "Always Install") - one for each of the mentioned target platforms. I want to be able to perform a silent installation on each of the four platforms, where the appropriate Feature Types are installed.

- Is it possible to select one or more Feature Types via command line?
- Is it possible to select all Feature Types, but set conditions (i.e. FileExist) which has to be fulfilled before the Feature Type is installed?

If this made any sense, could someone help me? :)