Is it possible to paginate a collection

Hmmm we don't support pagination. A potential workaround here is to use carousel indicators. How do you want the interaction to look like here? Expand below?

mm yeahh expand below might work

Should I add more product, hide, add button interaction to show when clicked

Yup, was going to say that

Let me know if that works for you. Otherwise, you can always put in a feedback request!