Create a product of a type from the products list: press "Add new product", choose the type in the dialog (it is a page inside a frame) and confirm. The back office creates the product at once, nameless and offline, and opens its page: give it a name and save it, or delete it.
Examples
When I create a "standard" product
When I create a "virtual" product
When we create a "standard" product
And I create a "combinations" product
When I create a "pack" product
Pattern
When(/^(I |we )*create a "(standard|combinations|pack|virtual)" product$/, …)
Part of @webship-js/prestashop-steps (github.com/webship/prestashop-steps), a step pack for Webship-js 2.0.x.