This has been a pain point for many users, and while work arounds do exist, it
is frustrating that this still exists.
I'd love to see the Wanted List code updated to allow the easy combination
of several Wanted Lists into a single new Wanted list while maintaining the existing
lists, and also the ability to easily modify the quantity of elements on existing
wanted lists. If the element appears in the wanted list in more than one color
it's a pain to try to add it in my experience. When I try to modify the quantity
I get an error message.
I'm not a complete newbie user, but am not a power user by any means and
don't have the spare time to become one.