Feedback: Could "Mark All For Trade" take Filters into account?

Maybe I'm missing something. If someone can tell me how to do this, I'd appreciate it. I'm trying to add cards several hundred cards to my tradelist based on filters.

1. "Mark All For Trade" puts the entire inventory into tradelist.
2. Filter, View->Print gives me a nice list based on my filters; but if I import that into the tradelist it adds them to my inventory as well, effectively doubling all my quantities. (I don't know if this is a bug or feature).

The most logical for me would be if "Mark All For Trade" took the current filters into account.