Trying to create this time signature

I have this piece that I am practicing and I am trying to type up as a way to improve my skills to read sheet music. Apparently the right hand is 6/4 if I count the notes but is written as 4/4. How do I do this? Thanks.

Etude I by Paul Sheftel

See the screen shot of what is supposed to be right. It's from a video but if I posted a link, who knows how long that will be cleared by the admin?