There is a common requirement from customers to show multiple Active Docs specifications on one page in the developer portal.
Currently it is not supported, and only one Active Docs spec can be rendered on the page.

The workaround for this is to update the template using a code snippet, based on the combination of JavaScript and Liquid tags. The snippet is currently available in the CodeHub:
https://support.3scale.net/codehub/display-multiple-swagger-spec (this link is discontinued, see the attached file)

As this is quite a common requirement, it would be good to add this as an out-of-the-box feature, by including the necessary logic to the standard developer portal templates.