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/14-level-settings.md

@@ -25,7 +25,7 @@ nothing.
 | **Description** | A few sentences for the mod list. |
 | **Project** | *new level* or *changes to an original level* (read only). |
 | **Base level** | The original level the project is built on – it provides the object code, textures, sounds, sky and music (read only). |
-| **TestLevel chapter** | New levels only: the chapter of world 9 (TestLevel, 1–49) the level replaces when its mod is on. |
+| **TestLevel chapter** | New levels only: the chapter of world 9 (TestLevel: 32–49, or 1) the level replaces when its mod is on. Chapters 2–31 are not offered: the game would store this level's coins over other game data. |
 
 Below the chapter field the dialog lists which chapters other level projects in your `levels`
 folder already use, so you can pick a free one. Each level needs its own chapter; chapter 1 is