Hello. I am building my second HO scale layout and it is well underway. However, while I have wired it for very simple DCC operations on a double-track mainline, I have a question since DCC is new to me. How do I wire up accessories like operating signals, or highway grade crossing lights? Back in the day, I would just use the extra terminals from my MRC power pack. Can I still use this pack and just dedicate it to my electrically run accessories? Thanks for your help...I really do appreciate it.