Under promotional info of email builder section of the V8 encoder, you can add an image on the left side and then add text on the right side. To do this,
1) Drag and drop the image to the Promotional Info section. Open image properties(double-click the image) to change the size. Make sure that the image is aligned left so that you can add the text on the right side.
2) Click on the right side of the image until you see the cursor blinking.
3) Enter the text that you want to add on the right side of the image.
4) Click OK to Save the Changes. Check the Preview on the left side.