Using C3, (don't have C2).
As part of my business app, I am trying to open a URL in an app. The user then will have the ability to use a 'return to menu' button (among other things).
As an aside, another requirement will be to open Google maps via a URL, so I'll need the same capability so the user can see the map, but I can maintain them in the app.
For C2 users I believe there was iFrame and Pode HTML tools, however don't think either are C3 compatible.
Being a C3 only user, I don't even have the luxury to do it in C2 while I wait for a plugin.