- Layers : ConTeXt's mechanism for absolute positioning and advanced techniques like background / foreground, switch on / off.
- Overlays : ConTeXt's mechanism to stack local snippets.
- Collectors : ConTeXt's mechanism to stack local snippets like overlays but with positioning features.
- Positioning : ConTeXt also offers mechanisms for directly processing positioning information.
- And don't forget the MetaFun reference manual.