share folders across multiple computers
My new iMac had to go in for a new logic board. (!) I've just set it up, I have one cloud account, pay for that extra storage, and everything is backed up from the cloud. I like to make folders for current projects, and create them on my desktop. When I open my other computers, a MacBook Pro or MacBook Air, the folders pop up on the desk top on those computers. I'm about done setting up the iMac (again) and these same folders on the desktops, are NOT showing up on the iMac desktop. I've googled, and searched this community, and cannot figure out what setting I'm missing to resolve this. Any guidance appreciated!
iMac Line (2012 and Later)