testlevel chapters 2-31 overwrite game memory (coin counter and flag rows end after world 8: progress, language, options): level projects, play-tests and the arena use chapters 1 and 32-49, old settings migrate; level tally counts the level's own coins and secrets

docs/manual/17-sharing.md

@@ -39,14 +39,17 @@ Then tick the level in LlamaMod, click **Apply** and **▶ Play**. To get rid of
 
 ## Chapters and conflicts
 
-Each new level occupies one of the 49 TestLevel chapters. The editor picks a free chapter for
+Each new level occupies one of the TestLevel chapters **32–49** (or chapter 1). The editor picks a free chapter for
 new projects, but levels from different people may use the same one. If two active level mods
 use the same chapter – or two mods change the same original level – LlamaMod stops applying and
 names the files involved. Fix it in the mod's options: every new-level mod has a
-**TestLevel chapter** option (1–49).
+**TestLevel chapter** option (1, 32–49).
 
-> **Note:** Chapter 1 of the TestLevel is also used by the built-in **Test World** mod. Prefer
-> chapters 2 and above for your own levels.
+> **Note:** Chapter 1 of the TestLevel is also used by the built-in **Test World** mod. The game
+> keeps coins and flags for chapters 2–31 of world 9 in memory that belongs to other things (your
+> progress, the text language …), so LlamaMod does not use them: levels saved with such a chapter
+> by an older version move to a free chapter from 32 on. With more than 18 new levels, some share a
+> chapter – only one of them can be on at a time.
 
 ## Updating a shared level