> For the complete documentation index, see [llms.txt](https://docs.phoenixlidar.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.phoenixlidar.com/spatialexplorer-8-and-9/user-interface/windows/project/geometry/modifying-geometries.md).
# Modifying Geometries
You can view the properties and features of a Geometry by clicking the **Properties** button:
## Adding and Removing Features
In the **Geometry Properties** dialog, you can remove features by selecting the row of the feature, right clicking, and select **Remove Selected Features**:
To add features, use the [**Picks**](/spatialexplorer-8-and-9/user-interface/windows/measurements-window.md) windows to create a geometry. Ensure that the correct geometry is open for editing:
## Editing Geometry Properties
Many geometry formats (SHP, KML, etc) support adding custom fields to features within a geometry. By default, all features created contain a user-modifiable string field "**Description**". You can double click fields to edit them.
You can add or remove custom fields by right clicking the header and selecting **Remove Current Column** or or **Add Column**:
When adding a column or field, specify the name of the column and **Column Type**:
The following generic **Column Types** are available:
| Type Name | Description |
| -------------- | --------------------- |
| String | Text entry |
| Double | Decimal number |
| 32 bit Integer | 32-bit integer number |
| 64 bit Integer | 64-bit integer number |
You can then input values, per feature, for the custom field:
## Saving Geometries
Once a geometry is modified, either by modifying fields or by adding/removing features, the geometry file will be unsaved. This unsaved state is indicated by italicizing and asterisking the name:
To save the geometry, select it and click the **Save** icon.
## Exporting Geometries
Geometries by default are stored as KML, due to KML's flexible structure and ability to accept user-defined fields. You can export geometries to other formats using the [Export](/spatialexplorer-8-and-9/user-interface/toolbars/workflow/export.md) tool.
{% hint style="warning" %}
Most geometry types have limitations regarding user-defined fields. KML/KMZ is rather flexible, as it's XML structure allows users to define custom fields with minimal limitations. If you plan on exporting to a different geometry type (e.g. SHP or DXF), ensure that the fields and field names comply with the geometry structure definition.
{% endhint %}
