Every once in a while I want to make a small hole in one of the plates in BL, here is how I think it might work. Basically, the tool would be used to cut a hole in a plate (a few limiters to keep from cutting too much would probably have to be added) so you could create a tunnel or whatever without having to make a myriad of smaller plates to make the hole wanted. Possibly, if you cut something similar to the following the plate could be pushed back and forth as sort've a door:
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| ______ |
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| |_____ |
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Thats it.