Just to close this out, I didn't have to create new Custom Actions for this. I used the HTTP Parameter I was passing to the page (to edit the record in SQL), and I used that parameter to write to a column/field in the Document library. The in the qListView I filtered on the HTTP Parameter. So all future projects will filter to just their own documents, as the ProjectID (the parameter I am using) will stay consistent.
Thanks , your answer pointed me in the right direction!