YouTube is testing a new mobile app feature with its premium subscribers that allows them to zoom in on any video. As noted by 9to5Google, the latest opt-in experimental feature enables a pinch-to-zoom gesture for videos — and it works both in portrait and full-screen landscape view.

According to the company, the zoom feature will remain in testing until September 1st, giving YouTube about a month to gather user feedback and refine things before potentially rolling it out more widely.

To enable pinch to zoom, open YouTube’s settings menu either on your phone or from the website. As long as you’re subscribed to YouTube Premium, there should be a “try new features” section. Right now, the only feature available for testing is the zoom ...