First off - you guys are all awesome.  I have been reading the forums trying to understand Nintex and while I have figured most things out, I am stuck on one critical element.  We are in a trial phase of Nintex forms for O365 with the hope it will do what we need it to do.  We are a small airline in Canada and looking at migrating our training documents in to SharePoint and useing Nintex as the go between (between the document library and the iPad - bye bye paper).

I have managed to connect my Lookup to my SharePoint list where we keep a master pilot list.  This list contains all of the vital information - surname, given names, license numbers and the like.  We would like to create a form inside of a document library that would allow us to select the pilots surname and then populate the remainder of the information (pilot license number, given names etc).  This is where I am stuck!!  I can not get it to do what I need it to do and without that capability, it may be difficult to move towards a purchase.  Any thoughts from anyone on this?  I have looked though the forums at length but I may not be searching for the exact terms so I thought an brief explanation would work. 

Any guidance would be so appreciated from us.  Thank you