On behalf of the user:
Imagine that you model a road by means of slab where the curb and gutter is modeled as a slab edge:
- Slab edge should be able to cut the object on which the slab is placed - adding a void to the edge.
- Such an edge should be able to be multi-layered and also remove different layers of another object.
When placing a slab edge, now one can only select segments of the border of a slab, or segments of a slab edge - it would be really great if there were an extra option to select ALL segments of the slab or the complete continuous line of a slab edge.