"Include Subdivided Areas" for the Calculation Methods
For applications where there are two colors in a drawing- like spots with sheet vinyl, it would be useful if you could use the area add-ons, but not the perimeter. If you put a green circular spot in a room I would want to have adhesive and installation for it, but I would not want wall base or wall base labor.
Room add-ons are not ideal, because it makes reviewing very difficult. You would have to verify every room to know that perimeter add-ons are correct. With the above method available, we would be able to review the products list and its calculations to be able to verify that everywhere there is this spot, base is not included, but the area calculations are. You would also be able to create a product called spot welding which would calculate the heatweld required around a spot.
This would be useful for tile as well. Use of the tile editor messes up perimeter add-ons. If you could include spots that are different tile colors, this method would work as well.