We would like to have a checkbox against a form that we tick when we want to prevent it being accessed. Say, for example, if a form drives a workflow that has developed a bug and is being actively worked on, we'd want a "Sorry, this automation is being worked on by our development team - Please try again later, and sorry for any inconvenience" message to appear if anyone accessed it.

Anyone who was not a Rewst admin would be blocked from accessing the form.