The only way I found how was to totally uninstall 7 and go back to 6. And that’s not easy by the way. CC really wants us to go to 7. To me, the flexibility and options to view, manage, keep and delete cookies in V6 was, by far, the best feature in CC. Sure, cleaning was good but there are lots of cleaners out there - including Windows own Disk Cleanup. But cookie management made CC standout, shoulders above ALL the others. Now, meh!
You improved it to death, Piriform. Really sad for such a long time must have (but no longer) utility.
See How to Roll Back from v7 to v6.39 - CCleaner for Windows - CCleaner