Visibility

Select the function Point clouds | Tools | Visibility.
The Visibility dialog box shows the list of point clouds on the main level of the active assembly. You can hide or restore cloud points from the list view. The list view also displays the number of points that each point cloud contains.

Note: You can also hide an individual point cloud by selecting it from the feature tree and using the context-sensitive function

Point cloud > Hide that opens by right-clicking.