Can I filter the submitted list in p4v to show submits from a few specific users?

Question

Using P4V to view our Perforce depot, I'd like to filter the view of the Submitted tab to show check-ins from a select group of users. So, I tried creating a custom filter which allows specifying a User. However, I'd prefer to list a few users but cannot figure out whether it's possible.

I consulted the Perforce docs and they don't really go into much detail on what's acceptable. I tried these variations: user1,user2 user1 user2 user1|user2 user1+user2

All failed so I thought I'd ask here before throwing in the towel...

Can anyone tell me how to filter the view in P4 to show a select set of users? Bonus points if I can filter and show all users EXCEPT a particular one. ex: !tooluser to hide all automatic submits by a particular tool.

Comment Responses: The [+]/[-] buttons only add high-level categories and User can only be added once though it is a large edit field (thus my attempts above). Only multiple file path filters can be added with the [+] button.

Answer 1

So I'm answering my own question with a response I got from Perforce:

Hey John - So sorry for your frustration and thank you for reaching out. 
Currently you cannot filter the Submitted tab to show check-ins from a 
select group of users in P4V. But this is a known issue in our backlog. - LH