I chose two places where this feature could be placed (in the screenshots):
- the first possibility is the window after signing a transaction in Hiro wallet;
- the second possibility is to add this option in the Stacks Bridge window, on the USDC/ETH side.
I think it can be in both.
By clicking on it, the application would invoke the function to add the address of the USDC token contract in the user’s Metamask.
Currently, the lack of an added token at the beginning creates additional difficulties for some users. They are also concerned about their funds when they do not see them in Metamask.
This would certainly be an additional user-friendly solution.