Add alert timeframe to include days of the week

A feature enhancement that enables alerts to be limited to certain days of the week as well as hours/mins would be very beneficial as there are often occasions when an alert is needed in the working week but not at the weekend.

An example is NetApp snapmirror lagtime. Mon-Sat these are set to replicate but not on a Sunday. We look for 24 hour lag most of the time to see an issue but on a Monday this would be 48 hours (as there would have been no snapmirror since the Sat).

I appreciate I can create ways to manage alerts using time based escalations however there is no way to affect the alerts view on the dashboard with this approach.

Hopefully something that other might also want which can be added in the future?