Is there any way to specify a Dynamic WS group that will show you all devices whose last full refresh (or any number of other date related criteria) since X days before today or older? I can specify a criteria that will show me all machines whose last full refresh is older than 6/14/16, but tomorrow that Dynamic WS Group will still show machines that haven't checked in since 6/14/16 instead of 6/15/16.

Every day I would have to change the criteria for the Dynamic WS Group if I always want to see machines that haven't had a full refresh in the last 30 days or so.