Sequential segments

Can we have segments where we can create a path, or like fallout report. This way we will be able to see the values of variables after a certain path was followed.

Suppose we have a user message we are getting in a prop, and then an event of say purchase.

Right now if I create a segment where I select visits where a user came across this error message and purchased, I will get a record where message came before purchase, and even the visits where message came after purchase.

But if I want to create a segment just for the cases where message came before purchase, that is currently no possible. If SC engineers can please look into this.