First of all, thank you for this plugin.
1. How do I remove the ‘Join Now’ button from the confirmation page and the ‘Join Now’ link from the e-mail?
We will have people buying these webcasts weeks or days before the webcast, so I want to write something like, ‘Copy the following link and go to it shortly before the webcast starts,’ and then provide the link, rather than having the button or the link.
2. Related question: could I put the plugin php files I want to edit in my child theme, so I can edit them without having to touch the originals or worry about the changes being overridden when the plugin is updated?