Each layer of layered walls and roofs can be designed with help of markers. For designing a layer you have to select an element with clicking left mouse button and at the same time you keep ALT key pressed down. Then edge markers appear on the element with dotted line, indicating that the given layer can be designed.
If you select the element as written above, menus of holding points and edge markers contain such commands that help to design contour of the selected layer.
Layer changing markers
Layer changing markers help to change layers of layered walls and roofs. Menu of these markers contains the following commands:
