Manually create a table in DataTables, and then create a workflow from scratch. In the first node, place the DataTables node; it will pull the table normally. Then, copy the node containing the table data and place it in your main workflow. Now it will be connected to the created DataTable. Whenever you want a different operation or a different table, you will need to repeat the same process.
Works. However it also worked for me to create a new workflow, use the db node to select the datatable in the dropdown, then switch to “by id“, copy the id and use that in other workflows without the need to copy the whole node. Seams like there is an id mismatch…