Hi Pedro,
I don't understand what you've done :-)
I'm really sorry but unfortunately, I think the goal is not achieved.
The source forum was
http://datatables4j-forum.10263.n7.nabble.com/ (forum A : 2 subforums, 26 topics)
The destination forum was
http://dandelion-forum.48353.n6.nabble.com/ (forum B : 2 subforums, 8 topics).
So I was expecting that you transfer the 26 topics from
datatables4j* to, for instance a 3rd subforum in
dandelion* (or anywhere in dandelion*), to finally have 34 topics.
But finally, it seems that you've created a 3rd forum :
http://datatables4j-forum.12186.n7.nabble.com/ with the exact same topics as the original "source forum" (forum A) and with the wrong name (datatables4j*) instead of dandelion*.
So, I'm now lost, please keep helping me :-)