Orders can be moved into different status' individually or in bulk from the 'orders' page, accessible from the middle of the lefthand menu bar.
To progress orders in bulk from this page, expand the 'order status' filter and select the Status of the Orders you wish update:
From here, you can select the individual orders you wish to advance, and then one of the arrow icons located at the far right of the action bar that appears at the top of the screen. In the dropdown menu that appears, select the status you wish to move orders from to advance them to the next status:
Note: Only the orders 'checked' will be advanced in status. In the example above, only the top 3 orders will be moved to Approved
To move all orders in a status, you can first check the 'Select All that meet Search & Filter criteria' box also located in the action bar at the top of the screen, and all orders in the filtered Status will be selected:
* Note: these actions above can be taken when wanting to move orders from Pending to Approved, Approved to Processed, & Processed to Shipped.