It could be Alan - I suspected that Adobe would have some completely illogical and unique way of doing things
Yep, that's it. So like all the other programmes you copy the settings with ctrl+shift+C, but unlike all the other programmes ctrl+shift+V only copies the settings to one file. Hopelessly idiosyncratic and inconsistent user interface. At least all of their products are similar in that regard.
So what about the curves colour channels then?
