New pages are threads where people can discuss and propose initiatives. Unfortunatly there are two options:
a. Wiki or Group Discussion, where you can only introduce text
b. Document, where you can upload a document or whatever.
But no possibility of opening a page where people can discuss a topic and upload documents during the process. The point is to add to the a new Group Discussion page the possibility to upload documents that remain attached, either begin the discussion or to help in the richness of the discussions.