I have still a problem to chance mappings on my keyboard. These tree things don't have any keys assigned to them. When i try to give them keys they will not accept them.
Alternative: Ctrl + 6 toggles score, Ctrl + 7 toggles passenger stop marker, Ctrl + 5 Toggles speedometer / compass
Go to documents/MyGames/TS2Prototype and delete the saved folder. But before doing that make a backup of it, then start the TSW once and quit. TSW will write new files in here. If you want keep your old profile go to the folder you made a backup of and go into SaveGames and copy your profile "PP_Yourname.sav" into the from TSW new created saved/SaveGames folder and you got your stats back. All settings are then reseted to defaul but after that the keys should be mapped correcty and CTRL+6, CTRL+7, CTRL+5 etc. working correctly too.
I fixed it with changing my keyboard to english united kingdom. Then changing the keys. And when i came back to my normal layout i could finaly map the keys for my normal keyboard layout!