Schedules will only pick up what can be seen in plan view - not sections, elevations, layouts, details, etc.
The only way to schedule them is to copy them from your elevation and paste them in plan - on a special "fill" storey if you like.
As the fills on your elevation will not be live (linked to the elevation if you change it) you will not be disadvantaged by having the fills in the plan as they won't be linked to the elevation there either.
the trick is to save copy and paste whenever you change an elevation is to use the elevation as a trace reference in the plan and adjust the fill directly as you would have if it was in the elevation itself.
The other way would be to actually model your tiles with 3D walls and then you could schedule the surface area of those.
Barry.
One of the forum moderators.
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