# Picks
The **Picks** window allows you to perform various measurements on the active map layer. Depending on which map layer is selected within the Project Window, points can be picked from the point cloud layer, the trajectory layer, or other additional map layers.
**Picks are made by left clicking on a feature in the map view** (e.g. pointclouds, trajectories, GCPs, images, etc.),
**Picks** can be used for measuring distances, creating corrections, creating intervals, and for creating vector geometries.
## Creating Geometries from Picks
Vector geometries, such as points, lines, and polygons, can be created using the **Picks** window. Select either **POS** (points), **PTH** (line), or **PLY** (polygon) as your geometry type:
Then, begin creating the geometry by left clicking in the main view. You will see your **Picks** displayed in the main view, along with a visualization of the line or polygon, if you selected either of those geometry types:
Once you are finished, select the **Create Geometry** icon and specify a name for the feature:
After a name has been specified for the feature, you will need to specify a filename for the KMZ. This is because a single geometry file (KMZ, SHP, etc) can have multiple features (e.g. multiple polygons).
Geometries created default to KMZ, as KMZ supports hierarchal, multi-type (polygon, line, points) geometry handling. To change the format of the geometry, use the [Export tool](https://docs.phoenixlidar.com/spatialexplorer-8-and-9/user-interface/toolbars/workflow/export). Modifying geometries is covered further in[ Project->Geometry](https://docs.phoenixlidar.com/spatialexplorer-8-and-9/user-interface/windows/project/geometry) .
## Sending Picks to an Existing Geometry
If you have a geometry in your project, this geometry can be set to **Open for Editing** by checking the checkmark icon next to the geometry:
If a geometry is open for editing, all geometries created using the **Picks** window will be created as features of the existing geometry.
