How to change existing wall in Designer Pro PLUS?
How do I change the material or properties of an existing wall in Designer Pro PLUS?
Double clicking in any of the walls (3D view) will open the Wall specification dialog box.
Under Wall types tab, click on Define…
Click on Plan Material… under the Layer Material section
Select your desired new material, then click OK.
As you will see, the Layer Material will be updated to the new material.