To compare 2 cores images or data side-by-side, you can arrange cores to be compared in different "tracks". To do that, first create and highlight a new track. Then load first batch of images to be compared using "Load images" item in the "File" menu. The second batch of core images can be loaded into another newly created track using similar steps. To arrange them side-by-side, use keyboard+mouse gesture "Shift-Drag" one track away from another in the vertical direction. If you need to move individual section along the depth direction, you can use "Alt-Drag" gesture to move sections to different depths.