Thanks for the reply. I agree it's as quick* to take a doc picture in the evernote app, but this is one of those "I wish I'd..." moments.
*I'd just gone into camera mode from the lock screen to take a quick snap of something and didn't have much time to do anything else. I guess unlocking the phone first might add an extra second or two, not that much in the scheme of things but I was focused purely on capturing it. Later I realised I would want that in Evernote and wouldn't it be nice if if was cleaned up.
I don't have photo processing software like Lightroom or Photoshop, and in any event these are quite heavyweight for my purposes. I don't have a vast array of snapped documents to process. I just wanted the Evernote app to do its document capture stuff on an existing camera roll pic.
I'm not familiar with the single-option wizard. Is that an Android thing or an Evernote thing?
Anyway I got an answer to my question: is there a way? The answer seems to be not within Evernote. It's something I'd like to see and wouldn't be hard to implement, but is not something I'll lose sleep over.