You could set the furniture to use a transparent material and turn transparency in in your elevation.
But that may not be the solution you are looking for.
If that does work, you could set up a Graphic Override to change the material (surface) of furniture object when viewed in section/elevation.
Otherwise it is a case of 2D linework to depict the electrical outlets.
One of the forum moderators.
Versions 6.5 to 25
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