I just thought of something easier.
You can use per-cylinder correction tables.
For bank one cylinders, add IAT 1 as the axis.
For bank two cylinders, add IAT 2 as the axis.
You can now make independent corrections to fuel and ignition.
The only downside is that you have to copy the table for each cylinder.
You can save the table to a file from right click and import for other cylinders.
