Adding Satellite Cannels manually on KDL-32W705C

[PatCrow]

I have a Sony Bravia TV, purchased in 2016 (Model No. KDL-32W705C, Software Version: PKG3.008EUA) with a DiSEqC setup for Astra 28.2°E (Satellite1) and Astra 19.2°E (Satellite2). I have been trying to add Satellite channels manually, but with absolutely no success.
I get as far as: Home > Settings > Digital Set-up > Satellite Auto Tuning > Fixed Antenna or DiSEqC > Scan for new services > Satellite2
but there seems no options for Transponder frequencies and FEC
I do not want to do a complete re-scan, because I do not want the existing channels to change position.
Thanks, Pat

[PatCrow]

Looks like nobody knows. And nor do I. I tried everything up and down the menus.

Finally I gave in and did a complete re-scan.

This was the final nail in the coffin. I'm done with Sony. Never again. So much about 'Smart TV'.