To make a transfer, navigate to Manager Home > Cash > Transfer.
Select the location you wish to transfer from.
Select the location you wish to transfer to.
Enter the amount of money you wish to transfer.
Select the tender type you wish to transfer. In this case you are transferring from the main safe so best practices would be cash. When transferring to the main safe it could be any tender type.
To complete this transaction; click Save & New or Save & Close. The money will be transferred and you will be taken back to the register and cash page where you will see the balance of the location you did the transfer to has been updated.