In the sidebar, single-click on the watchlist or source-folder in which you want to sort stocks.
At the bottom of the list-view, on the right side of Sort by:, click on the drop-down button.
A pop-up menu appears. In the Indicator sub-menu, select a pre-built indicator.
A small dialog appears: use it to set the parameters of the indicator you selected.
Check the Sort by: check-box.
Any needed ticker data is automatically downloaded, then the sorting is performed.