The part that I am trying to suggest works as a hole creator of sorts.
It basically creates a hollow portion on a part if placed inside of the of which is solid part.
(LINES GOING ACROSS THE PART IS TO SIMULATE THE SURFACE OF THE PART)
Q: But what about connections?
A: Good question there Tim. I hope that the devs will hopefully make the connection points of the Hole Creator to be free, Which means that it can be placed anywhere the user likes hassle-free.
link to Suggestion:
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@AnotherFireFox time to take it down i guess.