These threads should answer your question
[https://devforum.roblox.com/t/how-to-use-the-negate-and-union-tools-through-scripts/294500/2?](http://)
[https://devforum.roblox.com/t/how-do-i-create-unions-with-a-script/331677/2?](http://)fakedantdm100030— 3y