At the wanted lists "home page" there's obviouly the list of all your wanted
lists. But on the left, there's a menu where you can click on different part
catagories, set themes, minifigure themes, and such to see what you want from
that subsection across all your wanted lists. I would like the ability to filter
this to look at certain lists and not others, simular to when you're looking
at a store and can choose which wanted lists you want to buy for. I have 18 lists
and it is a little crowded and difficult to compare 2-4 lists with all that extra
information.