Not sure on PDF, but maybe @wendell knows?
Commands:
- L_Ctrl, L_Ctrl, [1-4] - change port
- L_Ctrl, L_Ctrl, F1 - auto scan ports
- L_Ctrl, L_Ctrl, F2, [up, down arrows] - manual scan through ports
- L_Ctrl, L_Ctrl, F3 - adjust scan rate
- L_Ctrl, L_Ctrl, F5 - audio follows port selection
- L_Ctrl, L_Ctrl, A - audio to current port
- L_Ctrl, L_Ctrl, F7 - USB 3.2 follows port selection
- L_Ctrl, L_Ctrl, U - USB 3.2 to current port
- L_Ctrl, L_Ctrl, Alt + R_Ctrl - change hotkey prefix L_Ctrl → R_Ctrl
- R_Ctrl, R_Ctrl, Alt + L_Ctrl - change hotkey prefix R_Ctrl → L_Ctrl