PLEASE PLEASE can you build this, it would greatly improve efficiency. Use Case: I want to build a segment which groups popular holiday durations e.g. 3, 7, 14, 10 days etc, I can do this by doing multiple containers with or's inbetween, but lets say there is 20 of these, if there was a way to regex match using something like [3|7|14|10...] for example I could do this in a fraction of the time. Exists in workbench already. Unfortunately the 'contains any of' won't work here because putting '3, 7...

Thanks for the update on this Ben, great that its under review. Just to add to what I put earlier, I think this is a real potential for differentiation between Adobe and Google. When Calculated metrics and their capability came in that was a game changer, i think whilst building the 'Worksheet' capability into workspace, could you also consider exposing the functions and statistical functions to this. That would be very useful. ThanksMark