Once you’ve added a color sampler, you can move or delete it, hide it, or change the color sampler information displayed in the Info palette.
To move a color sampler, drag the sampler to the new location.
To delete a color sampler, drag the sampler out of the document window. Alternatively, hold down Alt (Windows) or Option (Mac OS) until the pointer becomes a scissors and click the sampler.
To delete all color samplers, click Clear in the options bar.
To delete a color sampler while an adjustment dialog box is open, hold down Alt+Shift (Windows) or Option+Shift (Mac OS), and click the sampler.