Render point cloud in different colors based on the classification.
To activate this feature, go to Display Settings → Color Mode ↓ Classification.
The list of classifications that the project has will be displayed under Project Navigator.
Double click on the classification name to rename the classification.
Select multiple classifications by using SHIFT and/or CTRL and then use the right click context menu to hide or show selected classifications, hide or show all classifications, or delete selected classifications.
Click on the color icon to change the classification color.
Click on the lock icon to lock or unlock the classification. You can right-click and select Lock All or Unlock All from the context menu.
Hide classifications and export the project for further processing in other Autodesk products. You can right-click and select Hide All or Unlock All from the context menu.
Delete certain classifications to remove all points that belong to respective classifications.
Right-click and select Reclassify to... to change the points of that classification to another classification. This opens the Change Classification dialog from which you make the change.