Surely there must be a method to manipulate the GTC knob controls apart from the mouse on the Cessna Longitude.
In Microsoft Flight Simulator (MSFS), the Cessna Citation Longitude features three rotary knobs (rotaries) underneath the central Garmin Touchscreen Controllers (GTCs) which are essential for various flight operations. As of the latest updates, there isn’t direct keyboard shortcut functionality specifically for the rotary knobs on the GTCs. However, you can use various other methods and tools to streamline your interactions with these controls.