Bug:
When you click on "Copy exisiting attribute string" and then change the target attribute, the text box becomes writable again. Same thing if your change the target Tag.
Feature suggest:
When your choosing the <p> as target Tag, it would be nice if in the output/conversion option you could choose <h1>,<h2> or <h3>. Too often, during conversion (or because the ePub is badly built) <p> tags are used for headings.
Also,
I don't quite understand "New attribute string to insert (entire)": Does it replace the old value? or does it insert a value MORE than the old value?
In any case, personally it didn't work. All the <span> I've processed have become 'naked' (bug?).
EDIT: I hadn't seen the
Config button (for the <h1>,<h2>...).
A image of it and the associated window in the main computer would be useful, especially for non-English speakers (visual presentation).
(thanks BeckyEbook)