This does clarify it somewhat; specifically "DirectConnect sets up this communication with your bank to receive transaction data, but can't actuate transfers or payments." Now, to my original question, how can I find out which banks support DirectConnect?
I'm asking again because it took me a 40 minute phone call today to find out that one bank does not. They, of course, directed me back to Quickbooks for the answer while transferring me from person to person until finally we found someone familiar with it who told me DirectConnect is not supported; only manual export is. Kudo's to everyone at Frost Bank in Texas, btw, for their great service. So, again, now that we know what DirectConnect is, can someone tell me which banks use it?