I have a small scientific laboratory that runs a Windows Server 2016 Remote Desktop Server. RDS runs on one VM; the domain controller runs on the other VM. Since we have a relatively small group of people using RDS, I would like to customize their menu and desktops (much like I could using the old Terminal Services). I've installed RDS with a Quick Collection that provides all of the menu and desktop options--way too many. I suspect that customization is linked to collections, so wanted to create a collection for me (administrator) and the users. When I try to create a new collection, I don't get any options in the RD Session Host servers step of the wizard.
I guess I'm worried that I'm missing something simple: the collection concept seems to be designed for big installations. Not for us. Any help would be greatly appreciated.