The simplest answer is “just install Softimage in 30-day trial mode” and then set up the satellite service. That’s it.
The satellites don’t use a license. Only the master computer needs a license, and it’s the master that controls the maximum number of satellite machines (4).
If you have a network license, you may want to set up the satellites so you can run Softimage or xsibatch. In that case, you’ll want to point the satellite to your license server. You can either do that during the install, or by editing setenv.bat afterwards.