adding a new "address type" to customer addresses

My forecaster wants to add another option under a customer address.  Similar to "contact email" or "residence" .  We found the help documentation online on how to add the script SPEBA but there is a second step to manage the entry point "REMP_ADRBPA" from TRTBPA.

We can't seem to find this entry point, so we are not sure what to do next.