But it's not showing the image. I couldn't see anywhere in the dynamic attribute to specify that the image is in the subfolder images/courses, so I put that into the scr attribute to see if that worked but it hasn't.
In order to add dynamic src you just need to: 1. Add empty image tag on your page - or add it from the Insert > Image DW menu. 2. Click the added image 3. In app connect - select Dynamic Attributes > image > source 4. In the type dropdown in the dynamic data picker, switch to "Template" this allows you to use both static and dynamic values in the field. Enter your static path, then click the image binding and it will be added.