Click the pencil icon next to orders you see on the CLEAN, READY or SEARCH pages
Use the interface to make edits to the parts you wish to change for the order for example change the products in the basket. If you would like to move the status of an order back from READY back to CLEAN for example, then click on and then change the status
Once you're finished, then click the green submit button at the bottom right of the page
To cancel the Edit click the cancel button at the top of the screen
Note that it is not possible to change the name of the customer on an existing order. If you wish to do that, you will have to delete the existing order and create a new one.