Are you trying to make new adjustments, or are you trying to remove adjustments you have already made?
If you are wanting to intentionally make new adjustments:
What are you wanting to change?
Are you trying to correct a problem with the controller?
If you want to remove adjustments you have already made:
You can return to the standard settings by deleting the Model (or models) you were on while making adjustments, and create a new Model.
A factory reset will also clear all adjustments made in channel settings.