Yes you can.
- Choose the email design you would like to use, this will take you to a page called ‘Customise design’.
- Click ‘Edit main image’.
- From the the new overlay window that opens click on ‘Select image category’ and chose a category of images you’d like to view.
- Click on the image you’d like to use – a tick shows your selection
- Click ‘Choose image’ button to add it to your design in place of the present image