Is there a way to link a pop-up to a button?

What do you want to pop up? You can attach a custom  form in lightbox mode.

Hi 🙂

Thanks for your response 

Normally the 'book now' button would take our clients to our booking agent however with COVID we're just trying to capture emails to put clients on a wait list.  I'd ideally want something like this (attached) to pop up.  Ive created this as  a promotional pop-up but don't know how to link it to the 'book now' button - if thats even possible 😂

You can use Form Block > Enable Lightbox

Thank you!