That's interesting. But the other part is about a to re-import (CSV -> tag in the library). It is possible with AT&T or another way?
Yes.
Have you explored ways to keep a single library across both computers?
Not a lot. But the settings in Preferences and GUI are somewhat different in each computer, so I assumed it wouldn't be an option.
I use three (portable instances of) MusicBee across three different computers.
The three computers can connect to my server's network drive (where a fourth portable instance - the "source" - of MB resides, which I can access whenever I am on my local network or VPN'd to it.
Currently, I have
\Library,
\Plugins,
\Skins and folders inside
\AppData symbolically linked so whenever I open the program on each computer, it uses those shared folders instead of local ones. The reason I do it this way is because each of the three computers have a different resolution and, at this time, MusicBee unfortunately cannot support switching between them without destroying my layout. Anyway, this setup allows me to retain my Layout and View settings, which are contained in
\AppData\MusicBee3Settings.ini.
The only headache it creates is remembering to keep my Virtual Tags and Track Information panels consistent, since that information is also contained in the
MusicBee3Settings.ini file. It's not a huge deal, since (over many years) my coding in MB is pretty much finished, but I have created a
wish that you are welcome to support if you choose to follow this route.