{
  "Disable hover on dismount": true,
  "Enable helicopter rotation on hover": true,
  "Enable hover with two occupants": true,
  "Keep engine on when hovering": true,
  "Only admins can hover": false
}

Looking into it now.

Merged post

When "Enable hover with two occupants" is set to true will allow hovering if there are either one or two people in the helicopter. If it is set to false, it will only allow hovering if there is only one person in the helicopter.