I know this is an old ask, but I was trying to do the same thing based off of Interesting Moments. This is what I did:
1. Created a Smart Campaign with a Trigger --> Has Interesting Moment
2. Used the Filter "Has Interesting Moment"
3. Added a constraint to that filter "Opportunity Owner Name" equals XYZ
4. Flow --> Send Alert to xyz@xyz.com
You can do this for each Sales rep.
Sorry to bump this old thread, but we are trying to accomplish this with our Interesting Moment alerts also.. Any more details into completing this would be greatly appreciated..