We need to be able to create logic to target engagements to users who satisfy criteria such as:
Used [a given Feature] more than [x] times in the last [y] days.

Suppose you have existing Feature A, and you create a new Feature B which is a better way to do Feature A.
You want to target an engagement to power-users of Feature A, letting them know that Feature B exists.

So you want to target people who have used Feature A more than 10 times in the last 7 days. Right now, I don’t see a way to do that in Gainsight PX’s audience filters (or segments).