Tokens you own should automatically appear in your portfolio. Rarely, a token you own might be missing from your portfolio. You can manually add it by following the steps below.
*For Ape mode tokens to appear in your portfolio, you must enable ape mode.
Navigate to your "Portfolio" using the top menu or by visiting https://app.slingshot.finance/portfolio and make sure your wallet is connected.
In the "Wallet" section of the page, click "View All"
A window displaying all of your tracked tokens will appear. Click "Add Token"
Find the contract address of the token you would like to add and paste the contract address of the token in the search bar. Wait for the token load and click on it (make sure to turn on ape mode if you do not see your token).