Switch to a vertical tab of the form, by its title ("URL settings", "Authoring information", "Menu settings").
Examples
When I switch to the "URL settings" vertical tab
When I switch to the "Authoring information" vertical tab
When we switch to the "Menu settings" vertical tab
And I switch to the "Publishing options" vertical tab
When switch to the "Comment settings" vertical tab
Pattern
When(/^(I |we )*switch to the "([^"]*)" vertical tab$/, …)
Part of @webship-js/backdrop-cms-steps (github.com/webship/backdrop-cms-steps), a step pack for Webship-js 2.0.x.