Follow a top-level entry of the admin menu.
Examples
When I click "Posts" in the admin menu
When we click "Plugins" in the admin menu
And I click "Media" in the admin menu
When I click "Users" in the admin menu
And we click "Settings" in the admin menu
Pattern
When(/^(I |we )*click "([^"]*)" in the admin menu$/, …)
Part of @webship-js/wordpress-steps (github.com/webship/wordpress-steps), a step pack for Webship-js 2.0.x.