CC2564MODA: Using legacy PIN code connection with Bluetopia stack

Hi,

My customer is using CC2564 + AM335x.
They want to use legacy 4 digit PIN code with SPPM demo based application.

CC2564 is server and PC is client.
I understood from below Wiki, SS1BTM is configured to use secure simple pairing as the default.
http://processors.wiki.ti.com/index.php/TI_Bluetooth_Stack_for_WL18xx_-_Build_Process#Pairing_Mode

So I think this needs to be changed to use legacy pairing.
Is this correct ?
What else customer needs to be modified?

Thanks and regards,
KoT