I have a drupal view, which displays a content type filtered by a url argmuent (e.g. category). Now i'd like to add a link in top of my view, which allows my users to add a new node. In the add form the argument field should be prepopulated with the value from the filter.
I think to archive this, i have to install the prepopulate module and add some php-code to the header section of my view, which generates the link.
Any suggestions how to manage this?