Adding a graphic

I have a video with a white background and I would like to place a clock on the wall.
The clock is just a picture that doesn’t require any action (ergo hands don’t need to move)
It’s just a prop.
Please simple instructions for a simple minded person.

Thanks
Tim

V1 : Your video
V2: Clock Picture (with Filter: Size & Position)

(Click on the clock picture before applying the filter.)

Unless you changed your default length of pictures/graphics, I believe the default is 4 seconds. To change the default or to change the length of the graphic to fit your video, read this post: Can't change duration of a slide