[IPT] Resource configuration for new resource

Hi,

I added a new resource to my IPT and I could fill out all the metadata, but I don't see how I can add my source-file. If I check default resources (Pontaurus & Euro+Med), I do see Resource Configuration in the menu on the right (with Source Data, Data Transformation, Property Mappings, Cache, Validation). Am I missing something, or is this feature not available yet for newly added resources?

Peter