Adding multiple images on homepage!!

I cannot figure out how to add another picture on my homepage. I have the Smallbiz theme and it allows for one image to be uploaded, which is positioned in the allotted space to the left of the text, but if I add another image under homepage image, it only replaces my initial image. Is there anyway to add more images without changing code? I’ve tried to “insert/edit image” under the homepage text tab, but it only puts in a question mark or nothing at all. if not, step by step directions or exact code for a beginner would be great. Thanks.