I have a simple list that I have built a lookup tool for which I ask on a form for part of the users name and a drop down for the record type.
lets say the user is in the list 3 times
UserName UserType Joe Approver Joe Advisor Joe Tester
Since I pass the values from the form to the display code as parms, username is parm1 and type is parm2
When I setup the filter I want to create a way so the selection of a specific value works which it does and the ability to select all and have all work.