“Panic Wipe” function built into the wallet. So you can move your funds and NFTs safely to a new wallet (new seed) with ease.
When to use:
Primarily if a hack, exploit or other security flaws requiring a fast response or just a lost seedphrase.
Where to add:
Maybe it could be hidden behind an advanced settings menu or just in normal settings. Clicking the button opens a dialog box where the user can add the key which is required to send funds and NFTs (maybe possible with public key?)
First step should be a survey to prove if there is demand for such a feature.