This module is for Silverstripe v3.x only since v4 has built-in support for this (Member has_many RememberLoginHash).
Per default there is only one RememberLoginToken per member, which is used for the auto login functionality. This module enables multiple concurrent member sessions.
composer install level51/silverstripe-multi-member-sessions
Run dev/build flush=all and you are all done. No further configuration necessary.
JZubero [email protected]