Use case: I need cheat sheet data in one field for each topic category for each customer. The number of records for each category varies from customer to customer. That variability renders workarounds not feasible with the tools at hand.

We need a solution to be able to group/concatenate content from several rows of the same category into one field where the content from each cell is aggregated into one field (as opposed to a min, a max, or worse yet, a count).