The Delete Load option can be used to delete loads or excavations.
To delete loads / excavations:
Select Delete Loads from the toolbar or the Edit sub-menu of the Loads menu.
In the Plan View, use the mouse to select the loads/excavations you would like to delete. You can click on individual loads or drag a selection window to select multiple loads.
When you are finished selecting, press Enter or right-click and select Done Selection, and the loads/excavations you selected will be deleted.
Right Click Shortcut
The Delete Loads option is also available as a right-click shortcut:
Click the right mouse button on a load/excavation, and it will be "selected".
A popup menu will appear, from which you can select the Delete option.
Select Delete to delete the load/excavation.
NOTE: the Delete Loads right-click shortcut is available in both the Plan View and 3D View.