In Digioh, click your name in the upper-right corner. From the dropdown menu, click Setup Instructions. On the next page, choose your desired JS snippet option, and copy the code snippet. All snippet versions will work, but have tradeoffs, see Installing Digioh: Choosing the Right Snippet.
Open your site’s “template” or “wrapper” HTML file and paste the code. See additional instructions on the Setup page.
Save the changes you made to your file. Your Digioh lightbox is now installed on your site. You can test this by creating a simple Box of type Lightbox, and add a single Condition: URL Contains DIGIOH_TEST (or something that will never appear in a real URL on your site). Click Publish, then go to https://www.yoursite.com/?DIGIOH_TEST and you should see the box appear immediately.
Need any help? Email us at firstname.lastname@example.org and we can walk you through it.