How to mark a setting entry point as disabled?

Question

The guidelines for app settings (http://msdn.microsoft.com/en-us/library/windows/apps/Hh770544.aspx) say:

Display the same entry points regardless of the app context. If some settings are not relevant in a certain context, disable them in the app Settings flyout.

Is it possible to mark a command on the primary Settings pane as disabled, or does this refer instead to a sub-level flyout? If the latter, does that mean it is permissible to show and hide entry points on the primary Settings pane depending on context?

Thanks.

Philip