Identity Safe: Where store answers to login security questions?

Many secure websites require you to provide answers to questions that can be used to further verify your identity in addition to  the password; e.g., "What was your first pet's name?", "What was your mother's maiden name?". Is there any place to store these answers in the Identity Safe? I see there's an "Extra" field in exported CSV files but I don't see any place in the Edit Logins Details to enter extra data. I guess this information could be stored in Notes with the sites' URLs as the Notes' Titles but that seems round-about.