Custom application development environment modules may be designed to work with a first application development environment. This functionality may be extended to a second application development environment by first creating user interface elements for the second application development environment. User interface elements from the custom application development environment modules may be separated, forming user interface elements for the first application development environment. New general elements may then be created, which are compatible with both the first application development environment and the second application development environment. The general elements may be combined with non-user interface elements from the custom application development environment modules to arrive at a series of generalized classes. One or more of the generalized classes may then be referenced in the user interface elements for the first application development environment and the user interface elements for the second application development environment.