@cswestbrook Welcome to the community!
You can accomplish an immediate alert by setting the entry time to “0”. Actually, I prefer this myself instead of a 30 second delay on entry. If a door or window is opened, I want the alarm to go off so Noonlight can be notified promptly. I use my phone to arm/disarm the system to avoid triggering the alarm when entering and leaving.
There is an existing Wishlist topic similar to your idea that you may want to check out here.