This tips can be very useful for presentation of remote assistance from a powerpoint show.
How to proceed
Select the desired image in the background and right-click on slide. Select Background > Patterns and textures > Images > Select Picture. Choose the photo and and Insert > Apply.
To insert the object which moves, in the tool bar, select "Insert" > "Picture" > "From file" and click on the moving objects. You can also choose the picture size.
Creating the object path
Right click on the object and select « Custom animation > Add effect > Trajectory > Customize path > Free Form. You can even configure the speed of the moving object in the speed in the right tab on your screen.
You can now launch the slide show to view the automatic movement.