What is the Walkmesh Cutter used for?
This is part of the purpose of the “walkmesh cutter” in the toolset… to help simplify the area of a walkmesh that would get cut out by placeables. For example… lets say you’ve got a corner of a room littered with tiny placeables. A barrel, a chair, a bunch of books, some skulls, etc… because of the arrangement you’ve chosen, this would make for a very complex (maybe too complex) walkmesh. So what you might do is to draw down a simple “walkmesh cutter” that encloses the dozen small placeables you’ve layed down. This should greatly reduce the density of the final baked walkmesh.