@lucy.fahler, no problem—let me try to think through how this would be possible without restructuring your table, and without a huge amount of work arounds. You might be right that the appropriate format for this is a product suggestion, but I like thinking through these problems 
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In the meantime, have you seen this library app? Also, I don’t want to send you on a rabbit hole but, depending on the structure of your table, you might look into the technique outline here.
Stay tuned, I’ll check back soon.