I have a quality of live question,
Is there a way to start katalon project over desktop-shortcut ?
Like project file - open with Katalon.exe so it changes the project automatical?
With some larger project files it is quiet a hassel when katalon always opens the last used project.
Please let me know when there is a way in the current version 
No. I asked for a true CLI for Studio a while ago.
You can tell Katalon not to open the last project:
Damn. but thank you so very much, did not know about that option 