How to change the view( spreads vertically to hozizontally) on ipad?

hello, it was originally in spreads hozizontal view but somehow I changed it and I couldn’t find where to change it back on the ipad, it’s easy to do this on desktop version of dorico…plz help…thx

In Dorico for iPad, you need to tap the little “eye” icon on the secondary toolbar, which opens the View Options dialog.

However, I don’t think you can change this option in the iPad version: by default pages are arranged horizontally, but if you open a project that was saved in the desktop version with a vertical page arrangement, that’s what you’ll get in Dorico for iPad too.