To Start Editing

Click on the beam you want to edit and go the Properties panel on the left.

Enter the required value into the Elevation field in the left panel.

To rotate the beam, go to the Rotation field, either click on the rotate by 90 deg icon or enter the desired value (degrees) into the Rotation (deg) field.

Go to the Shift Beam menu in the left panel and enter the required values in the Right field (to shift right) and Down field (to shift front). To shift the beam left or back, enter the negatives of the required values in the Right field (to shift left) and Down field (to shift back).