How can I just show in a table sum of all the instances of a block per layer?
Background
I have a table that is referencing a handful of instances of a block via the data extraction tool in ACA2008. The instances are on two different layers; new and existing. When the table spits out I get a row for every block instance. I just want to see the sum per layer. I have seen this done somewhere but haven't been able to find it.