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

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