Filter Expression

Summary: How to make a filter from an expression?

Content (required): Is it possible to make a filter for the following expression, which is basically the difference between creation date and the current date/time, i.e. how old it is? So the user can get the details of all incidents that have been open for a certain timeframe. This would include being able to ask for incidents that have been open between say 4 and 8 hours, for example.

date_diff(sysdate(),incidents.created)/3600

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