Can you assign multiple values to an access filter?

Yes you can! Just add another row for that user with the value. Like so.....

As you can see, the admin has 1 row, while David Registro has 2.

While I used the manual entry to do this, as long as your SQL/CSV result has a separate line for each reference ID, it will work.

The following link should also provide some detailed info on setting up access filters:

Access Filters

Is article helpful?