Additional attributes for puzzles in collection

You can already add comments, but I think adding pre-defined attributes like for example: - number of missing pieces - box condition (good/damaged/missing) - piece condition (good/some bent or broken) - info where/when/how you acquired it (store, person, competition, ...) would be helpful to keep track of a collection, especially if it's large. And also: - being able to add a puzzle to a collection multiple times (if you have more than one copy with different attributes/conditions) Bonus: - Make the "in collection" tag on the puzzle page a link to that puzzle in your collection to be able to find it more quickly when you want to edit its attributes