In 1.0.62 a details window was added to the project manager. It can be accessed from the edit window by double clicking a class, or by selecting a class and clicking the details button.
The details window will then appear.
Items that will not be generated are highlighted in red, and the reason why displayed as well. CrossTalk currently only supports byte arrays so this image shows some items omitted because they use non byte arrays. In the future CrossTalk will support other array types as well.