Yeah that is how I have also been doing it and it has worked well for me, but I need a little more flexibility now. I thought setting up a share was supposed to be simple but Windows has managed to waste another whole evening of my life. I have gone through this kind of crap so many times. I am older now and I just don't have the patience for it anymore. It shouldn't be necessary.
Anyway, I am done ranting (for the moment, at least). I found out how to get rid of the damned ghost HomeGroups by killing the shares in Windows Management and restoring Win 10 and I think the damage is undone but I still can't get the bloody folder share to work. One computer seems okay but the other one I am using to set this up and test it keeps generating an error. The remote computer sees the folder being shared okay but can't connect to it for some reason. I have checked the firewall settings and I can't find anything wrong but it says it is not getting any data through port 445. So much for this being simple.