As a Promaster, while I'm reviewing processes for publishing, I have the ability to publish a process while the process is open. However, I do not have the ability to decline a process while the process is open. I have to exit out of the process and view My Dashboard > My Changes > Processes for Publishing and then decline. Leaving feedback (with or without requiring a response) doesn't decline the publish as well. It'd be handy to have both buttons in both places.
(NB: I updated the title for you)