You can upload more than one main image for your product - but you can only upload one image for each Product Option (different size/colour).   To upload more than one image, simply click on the Multi Image tab in RedStar Energy - if your images do not initially appear, click on the Reload Images button.

Re-ordering images
To change the order of the images, simply drag and drop them into the correct order, when you have finished, click on the Save Positions button

Adding a new image
To upload a new image, click on the + Add New button, you will then see a new image added to the end of your selection.

Adding the uploaded image
To change the image you have uploaded, or to upload one for the first time, double click on the item of your choice - a pop up will appear where you can add the image.  

When you upload an image, it will be re-sized automatically to fit the size of your page.   When you are done, click on the X to close the window, and then select Reload Images.