[Auto] [Update] Document Layer property type for custom behaviors and cross-scene object preloading

[github-actions]

This PR was automatically generated by the Update docs from GDevelop commits workflow.

An AI coding agent analysed recent commits in 4ian/GDevelop
and updated the documentation to reflect user-facing changes.

GDevelop commits covered

d81a6899d Allow to create variables from autocompletion in more cases (#8583)
cacd28eed Add a "layer" property type for custom behaviors (#8596)
e2de84627 Allow to load and unload objects from other scenes (#8592)
584cca2d4 Export classes in ResourceLoader for better TypeScript compatibility (#8594)
0b3f8e720 Improve types for TypeScript 6 (#8591)
4bb652f5e Fix Ai Panel not aligned to the top properly on mobile + improve games search to be more relevant (#8590)
f60562eae [Auto PR] Update translations (#8585)
1c17c895b Allow custom objects to move layer cameras (#8572)
651c93ae1 Add "Select All" in Events Sheet and ability to deselect an event when doing a multi-selection (#8578)
0eb6014a9 Fix some visual glitches in the Events Sheet when opening and scrolling (#8571)

The AI agent summary is:

Made two small documentation updates:

• behaviors/events-based-behaviors/index.md: Added the new "Layer" property type to the list of property types supported by custom behaviors.
• all-features/resources-loading/index.md: Clarified that the Preload object and Unload object actions now take a scene name parameter, allowing objects from any scene to be preloaded/unloaded.

The other commits (Select All in Events Sheet, custom objects moving layer cameras, autocompletion variable creation) are either keyboard shortcut additions or internal fixes that don't require documentation changes per the CLAUDE.md guidance to avoid documenting non-user-facing details or standard UI shortcuts.

Please review the changes carefully before merging.

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Project	Deployment	Actions	Updated (UTC)
gdevelop-wiki	Ready	Preview, Comment	May 15, 2026 9:20am