If you set this advanced option to
TRUE, reinforcing bars can be drawn on top of each other. In this case you have selected Visibility of reinforcing bars in group to bar in the middle of group or to customized, and you have two reinforcing bar groups on top of each other, for example, on the top surface of a slab and on the bottom surface of a slab. The default value is
FALSE. This advanced option is
model specific and the setting is saved in the options database.