Open a screen of the admin by its name (Analytics, Posts, Drafts, Scheduled, Published, Pages, Tags, Members, Comments, Settings, Staff, New post, New page, New tag, New member) or by its route after /ghost/#/.
Examples
When I go to the admin screen "Posts"
When I go to the admin screen "Tags"
When we go to the admin screen "Members"
Given I am on the admin screen "Drafts"
Given we are on the admin screen "settings/staff"
Pattern
When(/^(?:I |we )?(?:go to|am on|are on) the admin screen "([^"]*)"$/, …)
Part of @webship-js/ghost-steps (github.com/webship/ghost-steps), a step pack for Webship-js 2.0.x.