[itsme]

See page 38 of the English manual, page 47 / 48 of the German manual
Several keywords have synonyms that work completely similar.
E.g. if you start with an exported songlist according to
https://zubersoft.com/mobilesheets/forum...-5213.html
you can copy the songlist definition keywords that are all enclosed in %...% (title vs. %TITLE%.
Uppercase / lowercase doesn't matter title / TITLE / Title / %TITLE% ... all should work.
pages / pageorder / page order are also synonyms
PDFPage is my personal extra. It's the startpage of a song. I get it when I start with exporting PDF bookmarks and usually keep it for later use. It is helpful for sorting the CSV file: sorted by startpage is useful for going through a book to add more information to a book, sorted alfabetically is useful for finding songs in case I want to add only a few songs from a book (what I usually do).
PDFPage is ignored by MSP, as any column with a header keyword that is unknown for MSP - a very useful feature of CSV import.