# Layer Reference for Upper Connections

At the upper connections to roof surfaces, vertical and right-angled distances for each layer could already be entered. This determined the extent of each layer independently of the roof pitch. If a layer was to refer to another layer, the displacement resulting from the roof pitch had to be calculated in formulas; this could only be done for a specified roof pitch (preset values). Since version 19.01, layers can refer to other layers. This ensures that distances between layer edges are automatically maintained for the actual roof pitch without the roof pitch having to be specified anywhere. Different roof pitches within a wall are also not a problem.

In the drop-down lists where previously the higher or lower layer edge could be selected, the other layers are now also available. If, for example, in layer 3 you select layer 0 here, layer 3 will first be moved to the same position as layer 0. Offsets can then additionally be used.

* For example, you can set layer 3 to always be 2 cm lower than layer 0.
* You can refer to any layer; it does not have to be the neighboring layer.
* You can also refer to layers that in turn refer to other layers. For example, layer 5 should be 4 cm lower than layer 3 and layer 3 should be 2 cm lower than layer 0.


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