First, I'm going to explain how the license manager works and what the add user, add reserved and export functions do, then what I recommend given your setup. I didn't understand all of the ins and out of how it works until this morning because I never recommended add user to anyone in the past.
Add reserved just marks a user slot as allocated in licenseadmin.
Add user allows you to manually fill in the information for a "yet to be allocated" license.
Export simply copies the existing license folder to removable media.
The licenses in the license folder (1,2,3,etc) do not show up until they are allocated. So if you reserve a slot, it then shows up in the license folder.
If you have one or more offsite locations, using add user to preallocate slots requires you to run configwizard in order on each remote PC to get the remote sequence numbers to match what you manually entered in licenseadmin.
Since you have to get the license folder to all of the remote locations in any case I strongly suggest the following method, it's much easier than manually entering the information.
1) Take the authoritative license folder from the licenseadmin server and put it on a removable media.
2) Don't put the data folder on the removable media, instead, setup one PC with the appropriate settings (terminal type, colors, host, etc). Then export that registry entry using regedit (HKCU->Software->J. River) and put the resulting .reg file on the removable media. If the setup parameters are different from site to site, setup one PC at each site properly then create the same .reg file to use on other PC's at that site.
3) Put configwizard.exe (and/or configwizard44.exe for the classic client) on the removable media.
4) Get this removable media to site number 1 (in whatever fashion, ftp, emailed zip, sneakernet, etc).
5) Either
a) Take the removable media to each PC to run configwizard on (uncheck "select a configuration profile") or
b) Put it on a server all of the client PC's at that site can reach and share it writable (full control) for all, then browse to it and run confwizard on each PC.
6) After running configwizard on each PC, doubleclick on the .reg file to import the settings for host, colors, etc.
7) When you are finished with that site, transfer that removable media to the next site. Repeat until finished. When finished, copy the license folder back to the original licenseadmin server so you can see the results in licenseadmin. Always keep a backup copy of the license folder.