How do I delete a virtual hardware key?

On iOS

1. Long Tap on your Database
2. Choose "Manual Unlock"
3. On the Unlock screen, under the Hardware Key section tap the Hardware Key you are currently using
4. Under the Virtual Hardware Keys section Swipe Left to see the "Delete" option
5. Tap Delete

On macOS

1. On the Lock Screen in the Hardware Key section (you may need to click "Show Advanced"
2. Hold down the ⌥ (Option) key and click on the key you would like to delete.
3. Choose Yes when asked to confirm