AmigaOS 3.2 and ReAction

Posted this question on the Hyperion forum but I got no answer only a tip to try here

Have started to work on my first software on AmigaOS 3.2 that will have a GUI and.... how do I use ReAction in assembly? Can't find any include files or not a single example code for it. I see files for C in Includes_H but Includes_I are missing in the latest NDK