ADF standby frequency

Hello, Maybe this has been discussed before and I did search the forum without any luck. I just wanted to express my desire for a ADF standby frequency on the King KR87 ADF receiver that is found in many of the Carenado aircraft. This may not be an issue for people in the States but in Europe we still have a lot of NDB based approaches, both pure NDB approaches and NDB based precision approaches. I don't think it shouldn't be that hard to add the standby frequency and a functional swap button. I could do that myself but I'm not good enough with XML-coding. Maybe somebody already has a working code for that? Carenado, please add the standby ADF frequency into units that has it in real life. Thank you. Best regards,Tero