I have successfully used the approach here: http://4dc5.com/2012/06/12/setting-up-v ... ac-access/
to share files and the Pi screen with several Pi 3's but when I do this with a Pi 4, I can see the Pi 4 in the Mac's Finder screen and I have the Connect and Share Screen buttons but connection is denied. I can ssh to the Pi4 via the Terminal on the Mac but that is not what I need. Grateful for any help.
I am new to this so please keep answers very simple.