Hi Ji Zwo,
as I wrote already my Sky Watcher Star Adventure doesn't have a hand controller it even doesn't have a DEC motor. The idea I tried to bring up was for those customers who have a simple mount like I have a very easy way to get in the sky were they want. The mount is very light so with my main camera+lens and the guide scope including ASI120MM-S I am on the limit and have not many options to mount an additional red dot finder etc. So I am navigating kind of blind to my objects. Here the idea which would help.
The way I suggested does work by the way already manually: Use your mobile phone with SkySafari, I am using 6 plus on a iPhone 8plus, and hold it flat to the back LCD of the camera this brings me 90% where you want to be -> with a 70-100mm lens you see the object. For big objects like M31 just use the ASIair preview in continues mode and center the object. But what to do if the object is very faint or lens isn't a zoom lens and fixed at 400mm? Here you can do a plate solve and get the coordinates and enter them into SkySafari. Now you see where you are. Now move the RA and DEC into the right direction and try again. The only thing I want is that ASIair and SkySafari do this manuell process of typing the plate solve results fully automatic even I have no mount which can be controlled by ASIair.
I hope I could express my idea now in a better way.
Regards,
Dobiray