InputBox With Three Buttons?

[Mulsiphix]

Is there a three button version of the InputBox? I know I can build a GUI to achieve the same result, but InputBox is faster when I am short on time. Is there any way to squish a third button in there?

[RussF]

There doesn't appear, at least in the docs, to be a way to specify a button configuration like there is in MsgBox.

Russ