Two other buttons launch the same secure onboarding link:

1. Settings > Kitchen Locations > edit a location - a Connect Stripe button in the page header (only shown while Stripe is enabled as a payment method for that location and it is not yet live-connected; greyed out without the Connect Stripe permission).
2. Business Settings > Integrations > Stripe - the Connect Stripe button on the Stripe integration card.

All routes send you to Sprwt's connect service with your location, country code, agreement type and (if you already have a valid live account) your existing account ID, so Stripe resumes an incomplete onboarding rather than creating a second account. If your stored key is a test key the account is treated as not valid and onboarding starts fresh.