For your information, there's no outline drawing feature in Sweet Home 3D, and it's the reason number one why I hesitated to program the SideView plug-in during a long time.
There's only an option which allows to draw the contour of each polygon drawn by the program and this option can be activated in Pan3DView plug-in, but this option will show many undesired lines in a side view as shown in the following image.
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Emmanuel Puybaret, Sweet Home 3D creator
