By default when you add an overlay to your recording it will go on top of all previous overlays. For example adding an image after adding this arrow will add the image on top of the arrow. If you want to change the ordering you can click on an overlay and then click on Layering which will show a list of all objects drawn at this point in the video timeline. As you mouse over the list you'll see a label pointing out each object. If you want to re-order the overlay to be above or below other objects then you can drag the box up or down in the list. To move the arrow above the lmage we can drag it up one spot. If the overlay is at the very top of the list then it will be drawn over all other objects and if you drag to the very bottom then it will be drawn below everything else.