In order to switch between images using Display Conditions;

1. Create two Image Button assets on your screen

2. Choose the images you require

3. Highlight the first image in the editor and select 'Set Display Conditions'

image

4. Set the first image to show as Asset Interacted = False and specify the ID of the 1st image (p47069i02s04). This will mean the image will remain until it has been clicked on.

image

5. Select the 2nd image and 'Set Display Conditions'

6. Set these to Asset Interacted = True and again specify the ID of the 1st image (p47069i02s04). This means that when the 1st image is clicked on the 2nd image will appear  
image
 

7. Save the changes and preview to confirm.