Alex,
I've been building what I'd call "test suites" on a project for the past week. That is, I create a test set, add multiple calls to test scripts, some of which use the same scripts with different parameters. I tell it to execute and it runs each enabled test script and shows me which ones don't pass.
If that's different from what you're asking for, what are you trying to do?
Good luck,
Stew