First you need to request the release of this module with PagSeguro.
Access: https://pagseguro.uol.com.br/receba-pagamentos.jhtml#checkout-transparent
After clicking on Rules of use
After following the instructions of PagSeguro.
After you get the release, go to the Control Panel
After login click modules >> payment >> select MODULE_PAYMENT_PAGSEGURO_TRANSPARENTE
After clicking the INSTALL button
Fill in the fields:
APPLICATION ENVIRONMENT >> Change to Production
TOKEN
Interest free installment payment