How to make a select tool?

Help and Feedback Scripting Support
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#1

Basically, I want to replicate a select tool from studio but how do I do that? I want to know the best way of this. (Includes increment)

#2

You could use the f3x in Khole’s admin. It gives you Building tools in game, and they are pretty close to the old roblox tools. That is all I got.

If you want to handmake one I got nothing. Sorry.

#3

I only know that you can do that by using mousebutton1down and mousedrag.