Assemble new Speedmax CF7

Hi, it is my first reddit post, sorry for mistake.

I need some help, to assemble my new bike Speedmax CF7 di2.
It's a second hand.
I already find this vidéo :
https://www.youtube.com/watch?v=-QmkYYQvQso
It's prety easy to understand, but i'm stuck in start, maybe because some pieces were scattered in the box.
There is 4 pieces I dont know how to assemble for the cokpit.