This is primarily an user forum. Steinberg people read the forums and post occasionally, but if you’re looking for official support, you should contact them directly through your MySteinberg.
But yes, many instruments don’t have macro pages in Halion 6. These are the oldest instruments from Halion Sonic 1, and they show an edit page instead of a Macro page in Halion Sonic.
To edit them, click the Edit tab, then the Zone tab. The interface is extremely customizable, so you can move the Zone tab so you don’t need two clicks to access it if you want, or open it in a new window (check the buttons to the top left).