Move the "Move selected items" button up to be next to "Move all items" button in billing. The placement of the button right now doesn't make any sense.
Thank you for sharing your feedback with us.
The “Move selected items” button appears in the lower section of the screen in order to allow you to move multiple selected bill items from different bills. Whereas the “Move all items” button sits on a individual bill, which means the action is limited to the items on one bill.
It is for this reason why the two buttons are in separate locations. It is unlikely that the location for the “Move selected items” will be changed as the current location fits the use cases for multiple actions to be carried out at once.