Unanswered Threads for single subforum

Hello,

would it be possible to place a button to filter subforums for unanswered threads? 'Cause everytime I click on the link, i see many threads from different subforums. But most of the time I can’t help, because of language or not -understanding the topic. But if it were possible to filter, one could better help, can’t one?

Greets,
Tim