Dual apps in SailfishOS?

[nephros]

I’ll repeat my answer from another similar question:

Can I run more than once simultaneously a native or / and android app with different settings?

While this is technically possible (e.g. the Terminal app can launch separate windows, and some apps have support for multiple accounts), I know of no app which combines these features though.

It is not something you ‘activate’ on SFOS, each app must support and implement such behaviour.