# Categories Categories let you group POIs by type so visitors can filter the map to see only what they're looking for. ## Setting a category When adding or editing a POI, type a category name in the **Category** field. Categories are free-form text — just type whatever makes sense (e.g. "Food", "Restrooms", "Exhibits", "Parking"). ## How categories work on the viewer Once your map has POIs with categories, a **filter bar** appears at the top of the viewer. Visitors can tap a category pill to show only POIs from that group. Other POIs are dimmed rather than hidden, so the map context is preserved. The filter bar also includes: * **See All** — resets to showing all POIs * **Hide POIs** — dims all pins (useful for just viewing the map) * **Open Now** — filters to POIs that are currently open (only shown if any POIs have hours set) ## Tips * Keep category names short — they appear as pills on a mobile screen * Use consistent casing (e.g. always "Food", not sometimes "food" or "FOOD") * A POI without a category will never appear in any category filter, but will show under "See All" --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://lower-technology.gitbook.io/low-tech-maps/points-of-interest-pois/categories.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.