Action button and automatically add pages

Morning all,

I have created a 5 page document using prepare form in adobe acrobat dc (with much help from try67) to perfect this. I just require 2x addititions. 

1. I have a field (labelled "No.of_Nodes")  that refers to the quantity of control panels for the survey of the site. I would like the number entered into this field by our engineers, to create the number of copies of 'page 3' of this document which relates to the 'control panel' on this survey. Is this possible?

2. The end of the form I have a digital signature to lock the document from ever being edited and then an action button, set up on a mouse up action to send the document via the mailto: function to a dedicated email address. Is there a way to disable the action button until a signature has been completed?

thanks in advanced. 
Regards

Scott