Instead of simmers opening a bunch of items to find the type of file they wish to work with. This might help to speed up the process if they know ahead of time how many times they will have to split their mesh.
Could be useful when you need a mesh with as many cut numbers as possible for complicated clothing (allowing you to include simglass for example). I tend to always use the same base meshes but that could be useful for when you need something you don't usually use.
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