In many cases a feature may be built after data has already been acquired. The Data Association toggle button provides an option to be directly prompted to select a certain data type as features are built. The available options are shown below:
Placeholder - No Data. This is the default setting and is used when data has not yet become available to build a placeholder relationship which is ready to be measured.
Individual Points. With this option selected you will be prompted to select points when a new feature is built.
Point Groups. With this option selected you will be prompted to select point groups for association with the newly created feature.
Point Sets. With this option selected you will be prompted to select point sets for association with the newly created feature.
Clouds. This option allows selection of entire clouds for use in a feature.