Game Land / Game Land Special, the Casio's game editor for MSX

Hi everyone! I’m starting a rather ambitious project: I’d like to create the first complete guide dedicated to Game Land, Casio’s game editor for MSX. I was wondering if any of you have ever used it, even just out of curiosity, or if you happen to have any material related to it: manuals, photocopies, magazine articles (Japanese or international), catalogs, advertisements, floppy disks/cassettes with games made with Game Land, photos, screenshots, or simply personal memories and experiences. Any information, even what might seem insignificant, could be precious for reconstructing the history and how this software works — which today is very poorly documented. If you have anything to share, feel free to write to me here or in private. Thank you so much! LORe