You can import your existing wallet as the external one via a seed phrase or a private key.
Here is the detailed instruction:
Open the Step Wallet app. Download links can be found as follows
Go to the External tab. You will be redirected to the pop-up window.
Choose ‘I already have a wallet’.
Select the wallet to connect via:
Importing a seed-phrase,
Importing a private key.
Insert the required data.
Tap on the ‘Continue’ button.
Your KCAL and FITFI tokens will appear on the screen under the External wallet tab
Please note the tokens presented on the External wallet tab are related to Step Network.