Showing below grade foundation walls on foundation plan for walkout foundation

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I'm looking for suggestions on the best strategy to show foundation walls that are below grade on my foundation plan (i.e. walkout foundation situation-see attachment).  I don't know if I should be drawing with cad lines or if there is a proper way to actually do this.  I like to have 2 different floor plans for finished basement.  1-foundation plan that shows just the foundation walls and footings, interior bearing wall footings, and 2nd a basement plan with interior framed walls, cabinets, doors, etc.   Is it easiest to just draw the foundation wall and footings with cad lines or setup using an actual wall style.  If an actual wall, what level would this be drawn on?  Can't draw on the same level as the basement floor plan.  Also, is there a way to fill in the spaces shown where there is a door or window in the foundation (see attachment)?  There is actually a foundation wall below these openings but they don't show.  I've been drawing in a cad line to fill.  Better way?



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You can use reference sets to show things that are not on that floor. search reference sets to learn about them

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