Drag-and-Drop Sortable List in a FileMaker Web Viewer
This app demonstrates how to create a drag-and-drop list in a FileMaker Pro web viewer using the SortableJS library. Dragging to reorder rows in the web viewer updates the order column for all rows in the found set using the Replace Field Content step to avoid looping.
NOTE: This is a proof of concept, not a complete solution. Adjust the sortableSQL custom function and the webviewer HTML field as needed to support your use case.
This app uses the JSONGetElement function, so v16 or newer is required.