Something about ((SOLO Account Found) & (SOLO Character Found))

The explanation for ((SOLO Account Found) & (SOLO Character Found)) is unclear.
Parhaps we can add a Default Mode, which to be compare with SAF and SCF.
Then

Default Model = Shared Only LastEpoch
Share items between player and player in LastEpoch.
SOLO Account Found = Shared Only Account
Share items between character and character in a (account/player).
SOLO Character Found = Shared Only Character
Share items only under each character itself.

It’s easy to understand and no need more describe.