Two questions concerning video player

I was wondering if the video player that come with pureos can use the touchpad control, like quicktime does. By that i mean “double finger slide to the right” to advance the video smootly, and the same thing for reverse playing? It’s a function i think i’ll miss.

Also, I cannot find how can we open two videos at the same time… Sorry for this second dumb question.

Edit: I found that sliding up and down does indeed advance the video, but without being able to see the actual video smootly advance… So my question become if this is possible to implement.