I see... This is confusing since:
1) You can select the SX AO as an adaptive optics device within the Ekos internal INDI control panel
2) You can select the SX AO as a 'via' device when using the internal guider in Ekos
3) It says this on the Ekos front page: Built-in native Auto Guiding with support for automatic dithering between exposures and support for Adaptive Optics devices in addition to traditional guiders.
But, I understand and do appreciate all that Kstars/Ekos has to offer. I will start to experiment with PDH2.