Since you are looking for manual-style "hot" keys, here are the primary shortcuts for the Rii RK908: FN + INS: Cycle through 5 different lighting modes. FN + HOME: Switch to Breathing mode. FN + PGUP: Switch between colorful breathing modes. FN + DEL: Cycle through 10 flowing lighting modes.
Press * FN + * (the "1–5" keys will flash yellow if empty). rk908 bluetooth keyboard manual hot