External Tool (Labs) on Mac - how to

Hi all!

I am new to the Mac version of Knime.

I am not able to run the external tool. On PC it was not a problem.

My current status is that I can open an app with the command line open -a program name.app

However I cannot pass an argument to open an %input% file.

I have setup an “exchange.txt” into the Documents folder, but Knime is not writing there. I can’t get any file passed to the external tool.

Help is appreciated.

thx