Can the variables of webinar email templates

Can the variables of webinar email templates be common to all templates?

In the list of variables on wbeinar’s email editing page, you can find that some templates have the variable %AttendeeInfoHtml% and others don’t. If you insist on adding this variable in the template without this variable, the variable in the actual email will not become the corresponding Japanese . I hope it can be changed to this variable and can be used normally in all templates