This interim version carries most of the settings within the Order Editor itself. The new cartmart_order_editor module currently controls only a new hook which records the checkout shipping and payment modules on the order record, cartmart version checking and some debugging. The additional module records are not yet used in the editor, but that's the plan.
Using the editor
If you need to change customer or address details, hit the Edit Order Settings button at the top. This screen also supports changing the order status, adding comments and emailing the customer just like the core admin orders screen.
Buttons in the lower section of this first page let you add or edit order lines, discounts, shipping and amend totals. Take note of the restrictions outlined on the page.