I have a customer that uses a publisher that has truly weird requirements. The weirdness is that the locaters are not page numbers but paragraph numbers. And some paragraph numbers start with the prefix 'BO' and others with the chapter number. so a correct sequence would be BO.15 3.2 A finished sequence would be goddess @@ BO.15 3.2 3.5 The sort order has to be letter by letter, as defined in the Chicago Manual of Style. Can Context sort and summarize these locaters? I can even change the BO sequence to 0 (zero) and then change it back later on. The key is can Context sort by paragraph number rather than page number for an index. I have looked into Xindy for this job but the learning curve is pretty steep and the documentation pretty opaque. makeindex won't handle decimals for locators. I don't mind doing a little reformatting along the way (I already have for this project) but I don't want to rewrite makeindex or xindy just for this job. -- John Culleton Wexford Press Free list of books for self-publishers: http://wexfordpress.net/shortlist.html PDF e-book: "Create Book Covers with Scribus" available at http://www.booklocker.com/books/4055.html