Press a button of the main content of a store page by its text ("Create an Account", "Submit", "Save", "Save Address") and wait for what follows. The header and the footer hold links and buttons with the same texts ("Create an Account", "Sign In"): this step takes the one of the form.
Examples
When I press the "Create an Account" store button
When I press the "Submit" store button
And I press the "Save" store button
When we press the "Save Address" store button
When I press the "Sign In" store button
Pattern
When(/^(I |we )*press the "([^"]*)" store button$/, …)
Part of @webship-js/magento-steps (github.com/webship/magento-steps), a step pack for Webship-js 2.0.x.