As of 7.0.6, the Designer will support IntelliSense within the code window. This should reduce the need to export code to Visual Studio.
When working in the Code window, you can export your code to Microsoft Visual Studio. If you do not have Visual Studio, you can download the free version, Visual Studio Express, at http://msdn.microsoft.com/vstudio/express.
To export your code to Visual Studio:
1. In the Application Designer, enter your code in the Code tab.
2. In the Tools menu, click Export CodeBehind to VS.
3. Select the location where you will export the code.
4. Click OK.
5. The code is saved to the desired location in a folder called CodeBehindSolution. You can then open the code in VisualStudio, modify it as necessary, and copy/paste the finished code back into the Application Designer.