How do you get rid of the Zero Gravity Tool?

I hit Control Z and this box popped up (I have never wanted this control to show because I do not know how to use it).

Now I just want it closed.

You can hide this tool again by pressing this left toolbar Zero gravity icon:

What it does is this:

Here is a nice tutorial on that Zero Gravity:

Thank you for the reply.

Is there a way to turn off Control Z launching it?

You can disable Zero Gravity completely by disabling it in the extension manager, in the extension manager find zero gravity and disable it.

OK. Thank you.