How do I make this frame (RobloxRound) act as a mouse?

I am not sure what the proper name is, but I was wondering how to have this frame (RobloxRound) in the middle of the screen and my game requires that this dot acts as the mouse while playing. I hope someone will understand what I mean and help by showing me the script needed.

It'd be easier to use Mouse Customization to change your mouse icon so it looks like a dot.

However, if you want a gui to act as a mouse and move to where your mouse is, you can use Mouse.X and Mouse.Y to find the position of the mouse and change the position of the Gui accordingly. If you'd like more explanation on this method, please comment below and I'll edit an explanation in.

Okay thanks, and how do I use the mouse customization?