InfoPath Dev

I am just looking to create a sign-off button that will record the name of the user. It doesnt seem to be working I tried recording the username's name by doing this.

Here it is. Thank you

I dont have that option either. I believe it is because I am attempting to create a list and not a document library

I do not see the Add or Remove Custom Controls option

How do I add the XTP?

I do not know what that means. Could you elaborate? How do I leverage the data?

Can you elaborate on what file to download from the infopath dev site to inject QRules?

I am looking to do a web service connection so that I can get the getuserprofilebyname connection. However, I end up with this error. The file is not a valid XML file. The file is not a valid XML document. A document must contain exactly one root element. Line 3, Position 0

How do I add a new secondary field?

Per the attached image, I am looking to see if its possible to change the Saleperson (Header) field into a drop down field box?