Is there a limit on the number of Web Calendars I can configure?
No - There are no limits imposed on the number of Web Calendars you can configure in the Web Calendars Addon for MIDAS.
Do I have to embed my Web Calendar in an IFRAME?
No - If you don't wish to "embed" your Web Calendar within a page (or pages) on your website, you can simply "link" directly to it instead. That way, it'll open for your visitors in their browser just like a normal webpage.