Enforce any number sessions per user

[sdr0x07b6]

Settings > Authentication > User Sessions > "Enforce single session per user" switch

This feature limits the number of sessions to only "one most recent session".
However, it is common practice to use a Mac, iPhone, and iPad to keep people logged in at the same time.
It would be even more useful to be able to set the number of sessions to enable up to how many most recent.