I don’t think it’s possible, but it would be amazing to create sketch lines from edge selections.
It’s a tool that 3ds max has which is super handy.
It’s called “Create shape from selection”
Let’s say you have a created a custom object. But as a result, part of that object could be used elsewhere.
So you select all the edges and “create shape from selected edges.” Then extrude it out if it’s a full closed edge loop or if it’s not closed could be used in a sweep or something.