In Partners, you will see a  list with all your counterparties (suppliers, partners, etc.), choose those who want to Transfer (maybe more than one), click on Transfer (above the list of partners). Shows you a window with 3 fields to fill Account name - here you must enter the account to which the ascent to be transferred to a given document; Username - your username and Password.
           Below you will show the names of the contractors who are selected. After making sure that you have filled each as true flight press Transfer.

            It is important to note that transferring a product / document / counterparty, you transfer all the information with them.