[Observium] Delete device from custom mod list

Hi All

Is the is a way to delete a device from a Custom OIDs?

I use a custom oid to display hotspot users logged in via mikrotiks at 2 sites,

however I’ve just seen the OID page has had an update and is showing ALL(12) of our mikrotik devices?

I only want to show 2 of our devices!?

Regards

Simon