Are these coming soon?
Since Kestrel support is available only for Pro and Enterprise versions, those versions also carry user manual for Kestrel.
You are right about the A3 manual, we will include information about this flight controller in the next releases.
But You can ask here if You have any specific questions about it.
Kestrel and Micropilot systems are too specific and individual to have general manual. We work it out one-on-one with a client those.