To add a hover image on a link:
  1. Navigate to onMessage > Content > Links
  2. Create a new Link Category or edit an existing link
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  1. Click Save & Add Link 
  2. Click the + Add Photo under Hover Photo
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  1. Click Save
When adding a style to the link content widget on a page, the style will need to be set to allow the hover photo:
  1. Navigate to onMessage > Website > Main Site > Styles
  2. Click Edit corresponding to the selected style 
  3. Choose the Link icon
User-added image
4. Select the image icon in the style to edit the style for that section  
5. Select the Hover button from the left display panel
6. Click Save

User-added image