It sounds like you're dealing with a security panel that has a different setup than what you're used to. Here are a few suggestions that might help you resolve these issues:
Setting Zones to Separate Areas: If the panel uses numbers instead of letters for areas, you might need to refer to the user manual or programming guide specific to that model. Look for a section on area programming or zone assignment. It's possible that the panel requires you to assign zones to numerical area identifiers rather than alphabetical ones.
Accessing Non-Default Areas: The "areas can't be accessed" message could indicate a few things:
Permissions: Ensure that you have the necessary permissions or access level to modify or access different areas. Some panels restrict access based on user roles.
Panel Configuration: Check if the panel is configured to allow access to multiple areas. There might be a setting that needs to be enabled to access non-default areas.
Keypad Limitations: Some keypads are limited to controlling specific areas. Make sure the keypad you're using is configured to access the area you're trying to set.