We don’t yet have native alarm management, I would like to do something really clean in « arm/disarm » mode for your home with a nice UI and triggers/actions in scenes to be able to react to this state change (IF movement AND armed alarm THEN…)
But I think that in the meantime you can manage with another binary type (0/1), it will do the job in the meantime 
You can upvote the feature here if you want to see it in Gladys:
Cool, don’t hesitate at that time if you have any questions, we can take the time together to make sure everything is well configured, there are many possibilities with Gladys Plus and I try to support the installation as much as possible!