1)
MBV files stores the settings for a custom MusicBee View. These are created by clicking the heading at the top-left corner of your main view of albums and selecting
Custom Views > Copy Current View Settings To...Note that it's possible to hide this menu, so yours may not be showing. Right-click in the same place to show it.
To reuse the view in a new installation you'd have to copy that MBV file to the
Saved Settings\Views folder where your MusicBee settings are saved.
For a portable installation that will be in the
AppData folder in your MusicBee installation folder.
For a normal Windows installation I think it will be somewhere like
C:\Users\[Your user name]\AppData\Roaming\MusicBee.
AppData is a hidden folder, so you might have to type it into the Address bar in Windows File Explorer to get to it.
2)
To select which fields are shown for each track, in the same menu select
Customise Panel...Click
Show Settings to show the list of fields shown below each track.
It looks like yours is currently showing
Artist and
Bitrate.
Bee excellent to each other...