Hi Rochelle,
Thanks for reaching out!
Is the event recurring? If so, then the button will only show up on the first event by default. With recurring events, you can add tickets to the series as a whole, but it is currently not possible to add separate tickets to each date in a recurring event. I’m sorry for the bad news here! We are working on building out support for recurring tickets in the future – I would recommend casting your vote for the feature request here so that you can stay up to date as we make progress on this feature.
If you would still like the button to show up for each instance in the series, you can do this with a customization. Our themer’s guide is the place to start if you’d like to give this a shot! I’m sorry I don’t have a more straightforward solution for you at the moment, but please let me know if you have any questions!
Thanks,
Jennifer