Is there a way to adjust volume on left or right individually without editing a hearing profile?
The answer is yes. When you are in Personal Hearing mode, tap the equalizer button under the hearing environment icons. Scroll down until you reach the “Balance” section. You can adjust the balance between ears here, and it will apply to all hearing environments (Indoor, Outdoor, Crowd, and Live Music) as well as the hearing modes (Personal Hearing, Mobile Calls, and Audio Streaming).
You may find this setting useful for situations in which annoying sounds are coming from a specific direction, and you are unable to change your physical position. Otherwise, there may be no need, since once you have applied the results from your hearing assessment to the headset the balance should then be optimal for your unique hearing profile.