How to only include certain hits in a visit?
Hi,
I'm trying to figure out how to only include hits in a visit that ONLY exist for a particular evar and if that visit does anything other than that hit/evar, exclude them from the visit. In other words, I only want to get visits and count the visits that only include the 1 hit. I'm trying a segment like this, but I could just be duplicating the first part of the segment.

I want to include only visits that have done the first part. I want to exclude every other hit within the visit to get users that only do "a" and nothing else in the visit.
Not sure if this is right or if my "does not exist" exclude just double negates and is the same as the first part ("a" exists).
Happy to explain further if needed.
Thanks!
