Add States to Blueprint

Add States to Blueprint

Simple question:

Does adding a State to a blueprint add it as a stage for all records NOT in the blueprint? Example:

Default stages could be Project Match > Budget Quote > Formal Quote > Sent Invoice > etc

If I add a state to a blueprint using the "add state" button, will that create a Stage for all Project records that are NOT in the blueprint, or will it only be visible to record in the blueprint?

I need to be able to add a state/stage that is only visible from within the blueprint.