I'd like to use the total parent quantity of a component in the repeat region relations of an indented BOM.

For example, I have a washer that is used in several different sub-assemblies of a top level assembly. sub-assy1 qty is 5 and it contains 2 of washerA, sub-assy2 qty is 8 and it contains 3 of washerA.

I'd like to show a quantity next to the washer that is for the total number of times it appears in it's immediate parent, not the top level qty nor it's own quantity. So washerA qty as it appears indented under sub-assy1 needs to be 10 and as it appears indented under sub-assy2 needs to be 24.