Answered
Command to apply an action to all open files?
Is there a command that lets me run the same action on all open PS files?
Is there a command that lets me run the same action on all open PS files?
Yes in photoshop Fle>Automate>Batch
Process a batch of files
https://helpx.adobe.com/photoshop/using/processing-batch-files.html

Already have an account? Login
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.