Create Button that opens Fill & Sign box

I am working on building a form in Adobe Acrobat XI (11.0.20).  I've figured out everything else, except I don't want to do a digital signature, because the people filling out this form will not have one, and asking everyone who fills it out to create one is not an option.  Also, not all of them will know that signing a document via a picture of their signature, typing it out, etc., is available.  Therefore, I'd like to create either a button or text box that when clicked, opens the "Place Signature" box that opens when normally clicking "Fill & Sign", "Place Signature".  That is not an option under "Execute a menu item", so I'm not really sure where to go from there.

Thank you.