[Observium] excluding servers from alert checks

Hi,

I'm trying to exclude some servers from a check, but it does not work.

Check Conditions processor_usage greater 80

Device match: * notequals db-02 notequals man-01

Entity match *

But when I run regenerate the two machines have always the alerts enabled. removing the * from Device match don't help either.

A second question, is it possible to suppress alert checking during a certain period , I'll do off site backup each day that triggers this alert. The alert check: Traffic exceeds 85% with a delay of 2 If I put the delay higher I will not receive 'real' alerts.