Not with SnapDocs but can make an educated guess "Type" indicates a brief description of the assignment itself - what they expect to be done, in the case of your example, it's a single loan delivered by email (e-docs).
Other types could be "POA signing", "Refi", "Purchase Loan", "Seller Package"etc etc
Just my take on it. If you're not familiar with these terms I might suggest some more training in the loan signing field to familiarize yourself with the various products out there. I'd suggest Notary2Pro - Carol Ray's course.
And before you do all this, do research on the state of the market, which from all forums I've read is on a downhill turn - things are very very slow right now. Further, you don't mention where you're located - before investing any further funds, make sure you're in a state that allows you to do loan signings.