Bulk status changing for vehicles would mean any vehicle could have the 'reserve' tag added to it.
If checked, this vehicle would be at any normal time, status 6.
If you were to select 'State of Emergency' mode, then these vehicles would become status 2 and available.
Ignoring the specific wording, the concept would allow for those running setups where one wouldn't want their 'specialist' vehicles running around on normal calls. This, while focused on realism, would allow for an added Gameplay mechanic and extra level of management that could be undertaken by players.
What are your thoughts? - I'd rather the concept was debated rather than the wording used in this idea...