By clicking on a tab, you can switch between the files to inspect their statistics, and apply [edit actions](./menu/edit) and [tools](./toolbar) to them.
By holding the <kbd>Ctrl/Cmd</kbd> key, you can add files to the selection or remove them, and by holding <kbd>Shift</kbd>, you can select a range of files.
As mentioned in the [view options section](./menu/view), you can switch to a tree layout for the files list.
This layout is ideal for managing a large number of open files, as it organizes them into a vertical list on the right side of the map.
In addition, the file tree view enables you to inspect the [tracks, segments, and points of interest](../gpx) contained inside the files through collapsible sections.
Furthermore, you can drag and drop the inner items to reorder them, or move them in the hierarchy or even to another file.
<DocsNote>
The size of the file list can be adjusted by dragging the separator between the map and the file list.
</DocsNote>
## Elevation profile and statistics
At the bottom of the interface, you can find the elevation profile and statistics for the current selection.
<DocsNote>
The size of the elevation profile can be adjusted by dragging the separator between the map and the elevation profile.
</DocsNote>
### Interactive statistics
When hovering over the elevation profile, a tooltip will show statistics at the cursor position.
To get the statistics for a specific section of the elevation profile, you can drag a selection rectangle on the profile.
Click on the profile to reset the selection.
You can also use the mouse wheel to zoom in and out on the elevation profile, and move left and right by dragging the profile while holding the <kbd>Shift</kbd> key.
Using the <kbd><ChartNoAxesColumn size="16" class="inline-block" style="margin-bottom: 2px"/></kbd> button at the bottom-right of the elevation profile, you can optionally color the elevation profile by:
- **slope** information computed from the elevation data, or
- **surface** or **category** data coming from <a href="https://www.openstreetmap.org/" target="_blank">OpenStreetMap</a>'s <a href="https://wiki.openstreetmap.org/wiki/Key:surface" target="_blank">surface</a> and <a href="https://wiki.openstreetmap.org/wiki/Key:highway" target="_blank">highway</a> tags.
If your selection includes it, you can also visualize: **speed**, **heart rate**, **cadence**, **temperature** and **power** data on the elevation profile.