Can I get developer tools in my main app?



I set up a developer app to play around in, but my assumption is that I should code against our main application in HubSpot. The trouble is that the tools in my developer app are not available in our main app. For instance, I would like to create some event types with custom attributes in our main application, but this doesn’t seem possible, while it’s very easy in the developer app.

Am I missing something on how these things should be used?