I am trying to combine one image (7 bands) with other images over a given time period to look at the change in vegetation over time. I have combined 21 bands from 3 different images using the layer stacking tool, but I can't select three bands (or layers as they are now) to show as RGB like I could in one original image to emphasize different characteristics of the land. Is there a way to combine all bands from one image with bands from another image to create one final image containing all bands (which can be toggled on and off) from the included images?