Modules are the building blocks of your promotion. They let you create the layout you want without getting stuck in stodgy templates. Modules are always displayed at the bottom of your composer. Hover your cursor over each button to see what kind of module it is, and click on a module to use it in your promotion.
You can choose from these module types:
Image and text (image to the left of text)
Text and image (image to the right of text)
You can use modules in any combination to create the format you want for your promotion.