Depending on the type of visual, this option may appear as one of:
To make dimension scale independent, navigate to the Axes menu, and select Independent Dimension Scale.
To make the measure scale independent, navigate to the Axes menu, and select Independent Measure Scale.
To make the aggregate scale independent, navigate to the Axes menu, and select Independent Aggregate Scale.
To make the X and/or Y scales independent, navigate to the Axes menu, and select Independent X Scale and/or Independent X Scale.