A chamfer-like tool for live booleans / compound shapes would be awesome. It means I could have my shapes stay live longer before having to bake them down.
Right now you have the Corner Tool to define corners. Obviously that's moot when you have compounds as there are no nodes at the intersections.
A per-shape setting (or group of shapes selected and their interaction defined) could allow for "soft" compound shapes that get a flowing transition where they intersect. A bit like meta blobs, just with the options of the Corner Tool, to be consistent.