You can add a crypto as favorite at any time, to find quickly this crypto and follow the performance.
You need to go to your "Crypto wallets" section on the App main page, then select the crypto you have on your wallets directly. Now you have on the top right of each asset a star that you can tap on to add this asset as one of your favorite.
Then, you will be able to see your favorite assets directly on your Crypto page!
If you want to remove it from your favorite list, can just have to tap again on this star and the asset will be removed from your favorite assets.
You can also have access to all crypto assets on the Crypto page directly, then add crypto as favorite and also find your favorite ones on the Watchlist section.
Here a video to show you how it is display and how it works on the app!