You can use Calibre to create a new table of contents. It can do that a number of ways. If none of those ways work you can use the book edit feature to split the files at the start of each play and then use the table of contents creator again and it will work. Just try to make sure the name of the play is the top line on each file.
I do this all the time when I want a TOC in a book that's poorly made. I really don't know much about epub or Calibre but I've found this isn't too difficult to do.
Barry
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