The image you show is from a CS3 rather than a CS2
- same wallpaper but the CS2 does not offer a onscreen "STOP" and the exit icon is a "X" rather than a Loco in a red circle.

A manual will have shipped with the mFX+ loco.
Marklin offer a small selection of mFX+ manuals @ https://www.maerklin.de/.../spielewelt-anleitungen/

Your particular one (ID=6) is not specifically covered however any Diesel variant will be similar enough from the essential control viewpoint.

I have CS2, and the cab view image is looked very similar to the photo above, but since I copied the above photo from the internet, it may not be looked exactly same as the actual image on my CS2 for my locomotive, but all the control levers and buttons are same as what I see on my CS2. I have the diesel locomotive class G 2000 BB, before I upgraded the CS2 software, the cab view was looked like below, but after upgraded to v.4.2.1, it is looked like the photo above. The manual does not tell what control lever is for what purpose, it just tells what functions it has???

Here is the cab view before upgrade the CS2

FWIW

mfx+ architecture has 4 groups , or classes, numbered (1,5,9..),(2,6,10..),(3,7,11,,),(4,8,12..). If a new loco comes out and presents a cabID that the CS does not yet know (like your C2000 with an ID of 6), the CS will fallback to the root of that group - i.e. 2 in your case.

ref: https://www.marklin-user...finition--list-of-values




mFX+ locos ship with 2 manuals, the usual one with description, parts, function list, and a second one for the CabMode operation (as per the samples in the link provided)

If your loco came from the factory/dealer, and didn't have the second manual I would suggest sending an email to service@marrklin.de. This is one area they usually respond to pretty quicky (if the manual is new and available)