using the 'Find coordinates' Icon:
Search Region = target catalogue number; you can enter (for example) m101, or n2419 for Messier or NGC catalogue objects, or you can click on the small button to the right of the catalogue field which will use the current image's coordinates as stated by the mount via the ASCOM driver.
Size RA/Dec should be left at the default 4 and 3 degrees, until you are confident that maximum slew error is less than this amount.
In the 'Image' field you should have your camera's horizontal (widest side) dimension in arc minutes entered into the field and once you are certain that it is correct then reduce the % to 1 or 2. This will prevent false solves. Given your field I would leave reference stars at 5. When you have it all set then press the 'save parameters' button.
Some images are vertical flipped at the camera and then you'll have to check the vertical flip box.
You can also use the Star Atlas to find objects and issue GOTO requests. Once you have the current image plate solved the camera frame will show on the Star Atlas along with a cross indicating reported telescope coordinates. If you zoom out on the Atlas you can watch the cross move as the mount slews.
You can also issue GOTO commands via Skycommander for objects not in the AA7 Star Atlas, such as the Abell catalogue.
Edited by DuncanM, 22 March 2019 - 03:23 AM.