I've recently upgraded to PS3 and would like to make all my global tone adjustments in ACR and then open as a smart object in PS3 and add layers (for localized adjustments). When I do this and save the file as .psd, I can't seem to get back to alter the originally made ACR global tone adjustments. Should I be able to do this? If so, how? I'm hoping I don't have to re-do my layer changes after returning to ACR to change the previously established global tone changes. Can someone suggest a work flow that allows subsequent changes to both ACR and PS3 layers? Thanks!