I make section cutfaces, Tig's plugin I believe.... I use them in a few ways.
I use them to block the view of the empty cavities of the structure in various views.
I use them for Skalp and other SU hatch plugins.
I use them via copy/paste into Layout to convert them into hatches.
I leave them visible in elevations and floor plans so as to use them as references for section marks.
Here's my architectural symbols scrapbook for layout. It has a large section symbol.
http://sketchucation.com/forums/viewtopic.php?f=40%26amp;t=49829
Here is Tig's Interior Elevation Symbol and View plugin. Perhaps we might be able to convince him to create a similar section symbol plugin.
http://sketchucation.com/pluginstore?pln=ElevTag