@panamared27401
It's easy:
Just create a new container and give it a name
(e.g. "Mastodon 1").
Do the same for the number of accounts you want to login
(e.g. "Mastodon 2").
Afterwards, open a New Tab in container "Mastodon 1".
Login with "Account 1".
Open a New Tab in container "Mastodon 2".
Login with "Account 2.

They'll be completely separated.

It's easy, really - give it a try :)

@mattias @isagalaev