The materials on the Materials Report feed from the Repair Estimator. The report only displays repair items that have a material budget greater than $0.
Example
Say you want one vanity cabinet replaced and you want it on your Materials List Report. In the Repair Estimator, the vanity needs a quantity of 1 and a material price greater than $0.
With a total material budget above $0, the vanity appears on the Materials List Report.
Read the full article: Where do the materials feed from on the Materials List report?