Is there a way to call one Test Suite Collection after another?

Hi, is there a way to call one Test Suite Collection after another is done?
My test requires a bunch of test to be tested in sequential order first and then afterwards I need it to be tested in parallel and then back in sequential order when all parallel tests are done. Test Suite Collection can not call another Test Suite Collection though. So is there a way to accomplish this? I know you can’t do this through Test Suite Collection itself since I’ve asked before but is it possible through code? Or some kind of event handling? Just some sort of way to actually do it.
Thanks.

Why not you write a bash/PowerShell script which invokes Katalon Studio in Console Mode (https://docs.katalon.com/display/KD/Console+Mode+Execution)?