Some of the stevenson commentaries contain pictures that cant be replicated in any way so as to comply with the topx reader, so they will have to be made as mapx files.
Suggestion: Create a couple of other resources, that don't contain pictures. Granted, by the time you know how to create commentaries, you won't be able to backport them to e-Sword 8.x, because of technical failings of e-Sword 9.x.
jonathon