Here are the steps on how can you add the gallery code to your page.
Copy one of the gallery code which you want to display from the app.
You have different options like Home Gallery, Full page gallery, Customize gallery, or Product page gallery.
Step 1) Create a new page on Shopify or edit existing.
Step 2) Click on the Add page button to create a new page or edit the existing one.
Click on the Show HTML button of the page editor.
Step 3) Copy the gallery code which you want to display