This tutorial demonstrates how to add custom properties to points.
A user-defined property can be any useful attribute, such as date of acquisition or source. To create user-defined properties, you first create a property classification, which is a container for one or more related properties.
If you want to define a value for a point, but the applicable property does not exist, you can define it as a custom, user-defined property.
You assign classifications and their associated properties to the points in your drawing using point groups. After you have added the user-defined properties to a point group, you can add values for each property either by editing the properties of individual points or by importing values from an external point file.