Hello, I’m reading in the Skinning guide it’s possible to create nested publication types by calling the function getTree('','_').

But how do I do that?
And how do I name the «subfolders» correctly?

erling,

I would suggest that you contact Technical Support, and have them look at this with you. You may call 1-866-348-5863, or use the web page:

http://www.objectiflune.com/OL/en-CA/Support/ReportIssue/PrintShopMailSuite.aspx

However, please note that custom code and skinning is not officially supported. They will be able to point you in the right direction, but might not be able to provide you with an actual solution.

Regards,
Raphaël Lalonde Lefebvre