Any Staircase Property Should be Filterable

This is for Staircase reports, but might be applicable elsewhere. Currently, the reports in Staircase are somewhat limited for their customization (see 

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and all but require you do use an outside tool for more detail.

For example, if I create a custom report on Accounts and want to know which ones don’t have a domain, I have to create a report, add Domains as a column, and then...export it and filter to nulls.

Even in advanced filters, Domains is not accessible to filter on.

If it’s a property you can add as a column, you should be able to filter on it as well.