When you book any multi-day move you'll need to at least book the first day of the move, (see article for booking a job; either fleet or crew schedule), and then you'll be able to use the Copy Estimate button. This is also available in general after 'Saving' the estimate. (If you like to use one invoice for both days, please see the One Invoice article for multi-day.)
The first thing you'll do is click back on the booked job, once it's on your dispatching page.
This will open up that estimate for the job you clicked back on. Once the first day is booked you'll now see a Copy Estimate button within that saved estimate. This is what you're going to select which will copy over ALL THE SAME INFORMATION, just providing a new estimate number; which in turn creates a new invoice number.
You will then, of course, need to actually book this for the second or proceeding day(s) for the job. (see article for booking a job again; either fleet or crew schedule)
The only thing that you will need to do is now Close Out Each Day, after the move is complete, as if they were all individual moves like you would for any other job.
Please See The Article For Closing Out Jobs