Here are the shortcodes for inserting the legend into the meeting list.
[format_codes_used_basic]
This will insert only the format codes that are used by the meetings in the meeting list.
[format_codes_used_detailed]
This will insert only the format codes (with long description) that are used by the meetings in the meeting list.
[format_codes_all_basic]
This will insert all the format codes that are stored on the server.
[format_codes_all_detailed]
This will insert all the format codes (with long description) that are stored on the server.