Device Tab Filter Negation

Hi.
Is there a way to filter device list to see all devices that do NOT have certain tag?

Tags.Provisioned IS NULL

Unfortunately it is not working.

Found it:
NOT Q("Tag", "UpToDate")

If you put the this line into the UI filters dialog, it does work:
Tags.UpToDate Is Null

Maybe you should indicate where/what you are trying to filter? NBI? UI?

UI filters dialog.
Yes, it seems both ways work now… I’m not sure why yours did not earlier, probably some spelling mistake on my part.
Thanks!