> For the complete documentation index, see [llms.txt](https://docs-jmapserver-lima.k2geospatial.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-jmapserver-lima.k2geospatial.com/e/applications/jmap-ng-user-guide/the-data/data-layers.md). # Data Layers The card for each layer contains information such as the name of the layer, the presence of thematics, the presence of filters on the elements, etc. To access the available tools, pass the cursor over the card of the layer you are interested in.


	The icon of the layer reproduces its style, the appearance of the objects of the layer. The icon displays a number when a thematic is configured for the layer. The Thematics section offers details on this topic.
Arbres	Layer name.
	When metadata (data about data) is configured for the layer, a tooltip displays the layer name and its production date.
	Filter To display only those elements whose characteristics match the filter parameters. The Filter Elements on the Map section provides details on setting up and managing filters.
	Select This tool makes the elements of the layer selectable for editing, producing information reports, etc. The Making Layer Elements Selectable section provides details on this topic.
/	Display To activate or deactivate the display of the layer in the map. The Displaying Layers section provides details on this feature.
	Menu Contains other functions: More information: the Information section provides details on this feature. Thematic management: the Thematics management section provides details on this feature. Zoom to layer extent: the Geographic Extent of the Layer section provides details on this feature. Filter elements on the map: The Filter Elements on the Map section provides details on this feature.