This feature would also be useful in cases where a token has no current value listing, but it closely tracks a common crypto that already has a value listing. These are cases where we do not wish to change the token itself in order to track value.

This code enhancement would likely use already written code for this from other places, since you already use it in changing the token itself to either crypto/fiat/nft

Examples:

BTCLN Lightning token has no value listing, but can be set to 0.00000001 BTC each.

AAVAGHO has no listing, but can be set to GHO which has a value listing of 1 AAVAGHO:1 GHO, or just set the total value denominated in GHO would work.

Second this. Usefull on most NFTs that are not automatically identified.

Now I have to find fiat value of crypto before i enter fiat value into the value field.