is there a way to combine ARM data with the revenue recognition entries from a transaction analytics dataset? I've looked at linked transactions but can't find a way to get to the original revenue elements

I'm not 100% clear what you are trying to do, but right now I'm working on a revenue + deferred (planned for period) report that sounds similar to your question. It involves stitching together two searches in a suitelet.

I want to split my "Rev Rec Destination" journals by customer and by item in an analytics workbook. We have a mixture of direct revenue postings and revenue arising from arrangements - I'm hoping to avoid stitching together two searches

Yup, this is almost exactly what I'm working on. I got the story once it had already turned into a dev one but the functional team had already tried working from the journals and couldn't find any way of linking to revenue plans

hmm our netsuite rep may have oversold the power of analytics workbooks to our users 🙄