If I create a form and add add a bunch of controls and code, etc to it, I
can see that Visual Studio adds all of the requisite "creation" code behind
the form.

If I wanted to create a 2nd copy of the exact form, how would I go about
that? Could I just copy the code from the first form, including the
Windows-generated code, and paste it in the code-behind of the 2nd form? I
see that there is a warning not to modify the code-behind using the code
editor, but to instead use the Form Designer. Does that mean what I ask is a
bad idea?

If so, what's the easiest way to add a 2nd form with exactly the same
controls, events, etc?

Thanks.