Board Thread:Support Requests - Getting Technical/@comment-5952365-20150312185819/@comment-26009167-20150408220617

Yeah, Top 10 Lists use their own editor made specifically to make it easier to manage the top 10 list. You're somewhat able to view the source via diffs, but you're much better off using the editor page they give you.

So (1) I don't think there's a way to source edit a top 10 list, and (2) even if there was, i dont really recommend it.