How can i run an executionplan item in testexecute?

Thanks for your quick answer.
In your link i found a section that coulds help me
https://support.smartbear.com/testcomplete/docs/working-with/automating/command-line-and-exit-codes/custom-parameters.html

I just hoped there would be an easier way to do it, because as far as i understood, i have to create a  script for each project in my projectsuite otherwise i will not be able to pass parameters via commandline in TestExecute for this project.