Have an 'avy-org-refile-as-sibling' alternative to 'avy-org-refile-as-child'

[Keyhabit]

Would it be possible to include this functionality, i. e. to refile the current region to below the selected candidate but at the same level rather than as a child?

If it doesn't seem worth including officially, I would be immensely grateful if someone could help me out with the correct code so I could use it as a custom function.

Many thanks!!