Hmm I tried your suggestion. So I applied your template.
Now when I create a new project (Arduino) I get an error dialog "Arduino Project has failed to load XRC resource..." not sure what this means to be honest :-)
Nevertheless I can click OK and continue. When it comes to select a port I see a lot of different linux devices starting with tty instead of COM for windows. But there it is possible to enter a free text. Now when I try to compile the project I get no error and I can upload the program to my Arduino - Great!!!!
Nevertheless I would like to understand what is really going wrong when i use the "previous old" template for the arduino. Any idea what's wrong there? And in addition how can i get rid of this XRC resource issue?
Thanks,
maro