With the stock motor driver board, you should be using the TMCC engine type when configuring this locomotive. That will also give you a speed graph on the CAB2.
You can add the ERR Cruise Commander M (CC-M) board to replace the stock DCDR to give the locomotive cruise control. This is a huge improvement, and it's a mandatory upgrade for any of my stuff that has the old DCDR motor control board. The CC-M also gives you 100 speed steps vs. 32 speed steps for the stock DCDR driver board. You'll have MUCH better low speed performance and smoother running by far with the CC-M. The installation of the CC-M is a pretty simple affair, typically one wire from the CC-M to the serial data from the R2LC board socket and a couple of plugs.
The lighting is 3mm incandescent bulbs, they're not the brightest things in the world. FWIW, when I upgraded my Allegheny for my Super-Chuffer, I also replaced all the lighting with LED lighting, it's a night and day difference!
