Thickness Definition
This window allows you to define a thickness. The left pane of the window shows a list of available thicknesses in the model. The right side displays the parameters of the selected thickness. This is also where the parameters for a new thickness are entered.

1. Name
A unique name for the thickness. It can be left empty, and the program will generate one automatically.
2. Material
The material to assign to this thickness.
3. + button
Opens the definition window so that you can add a new material.
4. Thickness
The thickness value.
5. Reduction factor for Iy
A factor to modify the stiffness of the thickness about the local x-axis.
6. Reduction factor for Iz
A factor to modify the stiffness of the thickness about the local z-axis.
7. Color
A color to give to this thickness for visualisation.
8. Delete button
Deletes the selected thicknesses.
9. Add/Modify button
Adds a new thickness or updates an existing one.
10. Cancel button
Closes the window.