thanks for reply, master

.
it could be a problem of language differences as well. : D
okay. The following picture is the explanation.
at ordinary room, Quick editor / New Reply, just like the following will appear
whereas if the room Download Mp3, Quick editor / New Reply, will appear like the following. that which is different from the "categories" in the other room.
in other words, there is a "custom button" which is different from (categories) in the other room. and it is only in the download Mp3.
Can "Xthreads" do such a thing?
once again sorry if my English messed up. because I could just use Google Translate to divert my language, Indonesia to the UK: D