Originally Posted by cybmole
thanks for super quick response - I will search sigil forums, unless you have a handy quick link.
I guess that I could eplode epub , back up toc.ncx, edit in sigil, save, re-explode, replace toc, but I'd also have to also remember not to change the file split structure.
That's the main workaround - there are variations on it and discussion in the Sigil forums. Don't have a link though, the search tool is your friend