Thank you Kodiak, that's what I needed, but it doesn't seem to totally work.
Just as an experiment I clicked on an image and then looked at the adjustments clipboard, various items are checked. Contrast wasn't, so I made a change to the contrast on that image, contrast then had a checkbox next to it.
I unchecked contrast, click on copy and contrast just auto checks itself and the property is copied.
I want to be able to control the elements I want to copy.