Help/HelpHowTo
From TrainzOnline
To access the Help Mode drop-down menu, click on the question mark icon on the right uppermost corner.
View Trainz Help
This opens a browser window within Trainz to display the Online Wiki, specificaly on how to use the different driving modes.
Get help on...
By first clicking this option and then clicking on an object that you wish to query, Trainz will open the in-game browser taking you to the wiki entry providing details or help for that object.
View Session Instructions
This opens the Session Instructions window. Use it to review what you must do in the current session.