By default, the Goodshuffle Pro Website integration will show 15 items in an item list.
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If you have more than 15 items with a particular tag, and you'd like more than 15 of them to display online, you'll need to add a Size attribute to your website. Here's how you can do that:

With your Item List custom element added (learn more here), click "Set Attributes" and create a new attribute. We'll set the attribute name to be size and the value to the number of items you want to appear - it can be as high as 500.