Hi Tom,
What you can do is the following, use a qListView to display your Processes and make a column a LinkTo another page that has a qListView on it and filter this list based on the value selected in processes using a session paramater and the CAML filter feature.
If you want everything on a page use a qSelector to display the proicesses and then a qListView that fileters the data based on the selection made in qSelector again using a session and CAML filter.
To find you more about filtering please consult our documentation.