When you are watching a video on the Yabla player, there are some options (aside from the playback buttons), right at your fingertips. Marika explains the first three here in the first part of the tutorial: Help, Transcript, and Favorites, which may also be called "Bookmark."
Serena tells us a little bit about Yabla and some of its special features, notably, the option for slow and loop listening, and captions that can be visible or hidden.
Matches in Transcript
Caption 25 [it]: Visto? Appaio al rallentatore, Caption 25 [en]: See? I appear in slow motion.