Appointments+: Option to set maximum appointment duration freely

Hey!

The Appointments+ plugin limits the maximum appointment duration time automatically, depending on the "time base" setting.

There's a way to increase it manually with a code snipped (described in plugin's built-in FAQ) but could that be just an option in Appointments+ settings?

The current solution is here: https://premium.wpmudev.org/forums/topic/extra-settings-for-appointments#post-1270825