Cleaning up a prompt list used to mean deleting prompts one by one. Fine for two prompts, painful for twenty, and after a big import or a topic rework you often have twenty.
You can now select multiple prompts on the Prompts page and delete them in a single action. The confirmation tells you exactly how many are about to go.
Deleting a prompt frees up a slot against your active prompt limit, so this is also the fastest way to make room for a new topic without touching the prompts that are working.
And if you select the wrong ones, you have 48 hours to take it back. More on that in the next entry.