Dynamically sum/concatenate (with delimiters if you need) columns at least 2x more faster with this macro than with the standard way of transposing/concatenating/joining back the data.

OBS: I submitted the idea of having this feature for the multi field formula here, please vote if you also would benefit from that: https://community.alteryx.com/t5/Alteryx-Designer-Ideas/Enhancement-on-the-Multi-Field-formula/idi-p...