The Vault - Lock NFTs

Clicking the Lock NFT button will show the following pop-up:

Here you can choose how many of the NFTs you want to Lock (you might have multiple duplicates) and it will tell you the amount of Vault Points you will receive for doing so, as well as how long the Lock Duration is.

If an NFT is Locked in the NFT Farm, it cannot be Locked in The Vault.

The Vault Points you receive are temporary for as long as those NFTs stay Locked.

Locking NFTs for Vault Points will trigger a Compound of you currently pending ETH Rewards, so if you wish to Harvest them, do so before Locking any NFTs.