@fallcon Thank you! I've already figured it out.
p.s. but the drag and drop function works in my opera.

@tan4a2009 said:

Known issues: Due to changes on YT's side, the Magic Buttons sometimes appear at the top of the player's page. As a temporary fix you can drag the button below to your Bookmarks bar.
Fix
How to use? When you are on Youtube, just click the bookmark to put Magic Buttons back. Enjoy!
it doesn't work at all!

Sorry, everything works!

Known issues: Due to changes on YT's side, the Magic Buttons sometimes appear at the top of the player's page. As a temporary fix you can drag the button below to your Bookmarks bar.
Fix
How to use? When you are on Youtube, just click the bookmark to put Magic Buttons back. Enjoy!
it doesn't work at all!

Есть ли возможность изменять иконки сайтов, как в пк версии оперы?(или любой другой способ)
Иногда значки(эскизы) сайтов появляются, т.е заходишь на сайт, добавляешь на экспресс панель и всё. Но в основном большая часть остаётся "серой".

Why is it not possible to change the appearance of site icons in the express panel? Or have the opportunity?
Installed the latest beta version of the opera for android