[Observium] Setting up alerts

Hi,

I am using svn 5973.

I am trying to setup an Alert Checker. No matter what I do, I get an error that the alert name must be unique. I have tried strange names in the "Alert Name" field, but everything seems to be taken :-(

Leaving the entity field blank, gives me another error.

I am trying to setup, to start with, alerting if a port on the upstream router runs at 80%. Please see http://postimg.org/image/ah4h97ly7/

Checking what alerts exist gives me this page: http://postimg.org/image/sl08oy6y1/

I delete them all, and they reappear after a Regenerate.