So you can right or left click what you want to change 1 time. It will change the other images to low-detail, and change the icon in the top right to an unlocked lock instead of the red circle x. Now, if you left click it, it will move the image around your cursor. If you right click it, it will bring up the editor.
I will be making an animation section so you just select the time/iterations and it will do this part for you. But that will take a bit.