Good News item!
As per the following images, you can see that my Global and Charge Window attributes were set as the following values in the settings....
Global Values
ID: 66; AC Charge Enable to ON
ID: 72; Battery Charge Power set to 2067 (W)
ID:17; Enable AC Charge Upper % Limit to ON
ID: 77; AC Charge Upper % Limit set to 80%
as per...

and
Charge 1 Settings
ID: 64; AC Charge 1 Start Time to 23:35
ID: 65; AC Charge 1 End Time to 05:25
ID:101; AC Charge 1 Upper SOC % Limit to 100%

And this was the resulting outcome

Result!
I am now confident that I can switch back to WW to control not only my charging, but also limiting the SoC to the value I set in the tool.
Testing tonight and over the next few days different values to confirm.