Basically double clicking on any of your send level faders opens up the Channel Setting for the Send FX. It would be nice to be able to do this from both the mixer and the actual Channel Setting Editor for each track. I Know you can right click and edit setting of the send, but if there is say a EQ before the reverb, then it will only give you options of editing the EQ (First insert)
It’s one of the things I really liked in Studio One