Option Visibility
The option visibility page allows you to prevent users from editing the values of certain options via the in-game menus. As an example, the official Assault gametype uses this data to prevent players from disabling teams, since there is no code to handle FFA Assault.
In the original Xbox 360 version of Halo: Reach, a "disabled" option is visible in the menus but greyed out, while a "hidden" option doesn't show up in the menus at all. In Halo: The Master Chief Collection, disabled and hidden options are both completely hidden from the menus.
The top pane of the option visibility page allows you to control whether script-specific settings are accessible, while the bottom pane allows you to control whether non-script-specific options are accessible.
Both panes support multi-selection, and both panes have a context menu that allows you to change the states of all selected options. Selecting a category of settings (e.g. "Player Traits") is equivalent to selecting all of the options in that category.
There are over a thousand checkboxes for non-script-specific options. The vast majority of these are unknown: we do not know what options they actually correspond to: they may not correspond to options that are in the in-game menus, or they may correspond to options from other game modes (e.g. Firefight).