Sorry, I've been able to solve almost all the problems myself. Saving and loading maps now works and I've understood that you need the editor data to edit a scenario.
I've finished the machine translation of the manual, which can be downloaded here, only the color has been adjusted a bit. You're welcome to offer the file for download:
https://github.com/wovencode/javardry_manual_enI've also taken the liberty - after seeing that this project is freeware - of setting up a small website that contains the English documentation - so that hopefully more English-speaking users can benefit from it. A few additional categories (such as changelog, download links, etc.) have also been added here:
http://javardry.netThanks again for the great work that has been done here, I hope to be able to contribute something in the future too. I bow my respects and wish you a pleasant holiday!