@brazzerstop can you share link to your forum so I can get idea of format and number of posts?
I think can write widget to read all posts, and re-order them.
I did a small test of this, with the idea that just admin has access to view widget, with click to sort button.
What is possible is to read all topicd or posts with write API, e.g.
delete them, sort, then rewrite
But its not best method because new post ids are made.
I have been wondering whether a bubble sort routine working directly on the database post number field might work. Saves re-writing records, only swapping that field.
Up till now Ive never managed to get direct Mongo API calls working.
The NodeBB API however is quite easy to use