> For the complete documentation index, see [llms.txt](https://docs.zep.us/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zep.us/zep-script/zep-script-guide/appendix.md).

# Appendix

* [<mark style="color:purple;">ZEP Script Use Cases</mark>](/zep-script/zep-script-guide/appendix/zep-script-use-cases.md)
* [<mark style="color:purple;">Understanding Spaces and Maps</mark>](/zep-script/zep-script-guide/appendix/understanding-spaces-and-maps.md)
* [<mark style="color:purple;">JavaScript Keycode List</mark>](/zep-script/zep-script-guide/appendix/javascript-keycode-list.md)
* [<mark style="color:purple;">Understanding Sprite Sheets</mark>](/zep-script/zep-script-guide/appendix/understanding-sprite-sheets.md)
* [<mark style="color:purple;">TileEffectType Detailed Explanation</mark>](/zep-script/zep-script-guide/appendix/tileeffecttype-detailed-explanation.md)
* [<mark style="color:purple;">What are Reference Coordinates?</mark>](/zep-script/zep-script-guide/appendix/what-are-reference-coordinates.md)
* [<mark style="color:purple;">Communicating with an External API</mark>](/zep-script/zep-script-guide/explore-zep-script/tutorials/communicating-with-an-external-api.md)
* [<mark style="color:purple;">How to Use URL Query Strings</mark>](/zep-script/zep-script-guide/appendix/how-to-use-url-query-strings.md)
* [<mark style="color:purple;">Grammar Available for Widgets</mark>](/zep-script/zep-script-guide/appendix/grammar-available-for-widgets.md)
* [<mark style="color:purple;">Object Interaction with ZEP Script</mark>](/zep-script/zep-script-guide/appendix/object-interaction-with-zep-script.md)
* [<mark style="color:purple;">Object npcProperty</mark>](/zep-script/zep-script-guide/appendix/object-npcproperty.md)