Add additional option for forgot password/username for project CRM_UTILITIES_UMC_URM

We have one scenario to add business agreement field also a option to forgot password/username.

In forgot password/username, we have option to pass username or email ID.

The project CRM_UTILITIES_UMC_URM have below function import to perform below:

1. When provide Email

/sap/opu/odata/SAP/CRM_UTILITIES_UMC_URM/ResetUserCredentialUsingEmail?UserEmailID='test@gmail.com'

2. When provide UserName

/sap/opu/odata/SAP/CRM_UTILITIES_UMC_URM/ResetUserCredential?UserName='testuser'

Here we want to add additional field e.g. BUAG ID also.

The Standard model class CL_CRM_IU_UMC_URM_MODEL have defined below two function import.

ResetUserCredential and ResetUserCredentialUsingEmail.

Is there any option provided to add additional functional import e.g. "ResetUserUsingBUAG" without extending the standard model class?