And if you'd rather the tablet disappear entirely, tap the arrow at the bottom of it and it'll retract neatly back into the dashboard, revealing another small space to store things.

This button has an arrow pointing left (‘back’) with the name of the application. If you tap on it, it jumps back to the Mail app. It’s a nice little shortcut that was first introduced in iOS 9.

In a new user interface test, Google shows a button to jump the mobile searcher back to the top of the search results page. Barry Schwartz on November 4, 2016 at 8:37 am | Reading time: 1 minute ...

However, resetting both test builds, alpha and beta, to the older, four-button user interface may imply Twitter has some retooling to do when it comes to the release of its forthcoming redesign.