I just need to check 2 things, because the documentation is a bit sparse...

1. When I am setting up the SEF's for the first time, and I change a SEF. If I don't want to keep the original SEF, I press cancel to the question "Your SEF link has changed. Do you wish to save the old one to Moved Permanently redirection table so it will still be working", right?

2. What is actually the purpose of saving a SEF as a custom url? Is there a benefit in keeping them in a separate list, and not together with the rest of the sef's?

Hello,

1. Yes, that's correct.

2. The URLs saved as Custom are not deleted during Purge.

Best regards,
ARTIO Support Team