With the Wall Corner Custom 90, configurations add up vertically (not illustrated, see Wall Custom Vertical)
Variables to set in the Dimension tab:
Depth2 (D2)
Width2 (W2)
Variables to set in the Shelf tab:
(These can be set independently for each configuration)
Shelf
Corner Depth 1 [config] (SDC1 [CFGS])
Shelf Corner Depth 2 [config] (SDC2
[CFGS])