Does it have to be a column for the sort to work? I have a module with Time as columns but I want to sort the list (on rows) based on last 12 months of avg. sales, not based on sales from any specific period/column. Do you know if there's a way to achieve this? If I pivot to bring the line items as columns, apply the sort and then pivot back to bring the Time as columns, I am losing the sort. I know this used to stay in the classic UX. Any ideas on how to solve this in new UX?