I am using the NExt Gen Gallery Pro Plugin with the Justified Image Gallery plugin to display images on my website. I need a modification to these plugins so that a feature called "Add to Favourites" is added. Basically I want users to able to save the images they like to their favourites page which they can login later to see them.
1. Add a "star" image to the top right of the images so that users can click/unclick to save/ unsave the images
2. A favourites page to show the favourite images. Favourite images to be categorised or sort according to the gallery they are obtained from. Ability to remove from favourite from this page as well. Favourites page linked to the user account i.e each user should be able to favourite the images.
3. This feature must be compatible with both Next gen pro and Justified Image grid as the images are stored and displayed using Next Gen pro and must not interfere with how the plugins work