This function on the System Settings submenu allows you to display model and layout simultaneously. (The Enable concurrent mode of model/layout checkbox on the Display pane of the Tools>Application Options>Display>Set Configuration Options dialog, performs the same operation and will be unchecked if toogled off using this function.)

When you turn on the function

• In model mode, the layout mode window opens, if layout exists.

• In layout mode, the model mode window opens.

When you turn off the function

• In model mode, the layout mode window closes.

• In layout mode, the model mode window closes.