Question about new reconnect settings and logic behind it.

First we have module User Settings > Settings > Local Optional Features with 2 Reconnect options:
1) Reconnect
2) Reconnect (central override)

What is the difference between them? Where I could find explanation what does both option selections (System Default, Automatically, Never & Client Decides, Off, On) mean ?

Also there is another Reconnect setting in Optional Features with options Client Decides, Off and On.


How this setting is meant to work togerther with the one in module User setting'? If I have selected 'Client Decides' in Optional Features and also 'Client Desices' in User Settings, what should happen - where I can decide it?