TextRich

Does that mean a Navigraph customer can still download an AIRAC update file and manually insert it in the aircraft's files rather than using the AIRAC updating application often incorporated by other developers?

It looks like the default controls are incorrect. It says Num 0 for left rudder and Num Enter for right in the keyboard settings. Believe it or not, you need to reassign the key press for right rudder. When you select Change Assignment... for Rudder (yaw right), it will say "Enter" on the keyboard input and not "Num Enter" as you see in the default keyboard control. It must have been some programming error - they thought the key was called Num Enter. I just realized now that the Enter/Return key on the main keyboard layout is not used by the sim by default. It controls the right rudder as well (after you reassign it). There must have been some sort of programming issue that prevents the Enter/Return and Num Enter keys from being recognized as separate key presses.