While modeling door-window designs, parameters such as opening angle, material, glass thickness are added.
Add New Parameter
You can define variables that you can use in the parameter section of the object settings.
Click on the Construction / Add New Parameter row.
Enter the parameter name from the dialog that comes up.
Enter a number in degrees for the angle.
If the parameter is the opening angle , check the This Parameter is the door / window opening angle option.
Click the OK button.
Adding Parameters to the Case / Wing
The previously created variable is assigned to the angle in the parameters section of the case. You can do the assignment by clicking the down arrow next to the value entry area.