Please observe the community guidelines and refrain from multiple posts on the same topic or question. It’s also much better to post your own question instead of bumping up an old post. Explain what you are trying to do, what works, and what doesn’t. Also, add any code in a code block as stated in the Forum Guidelines .
To open a Lightbox, you will first need to implement the Repeater’s onItemReady() event handler which will assign an onClick event handler to each repeater item. This is where you will have the code to open a Lightbox .