Hello,
Try with below BADI.
With the BADI FTR_CUSTOMER_EXTEND you can create two additional tabs.
You can define custom fields in the appends to the table VTBFHA.
You can program your BAdI implementation for your custom fields to appear in the custom tabs.
In the function group FTR_CUSTOM_BADI_SAMPLE (transaction code SE80) you can find an example of implementation provided by SAP.
If you check in the above function group, there are sample subscreens designed.
May be you can refer to it and try the same.
Regards,
Thanga