1. Select the Surface Load Property to be changed by clicking the desired Surface Load Property in the Surface Load Property list box. That entry will be highlighted and the values for that surface load will automatically be entered into the other dialog box controls.
2. Change the Load property by modifying the load magnitudes in the appropriate edit boxes or by changing the Live Load Reduction Type using the appropriate option buttons.
3. Click the Change button. The changes will be shown in the Surface Load Property list box.

If the Surface Load Property is currently assigned in the model, the changes in properties will automatically be updated in those assignments.