Hi Andrew, did you see the last picture in the tread I started some day ago?
DXO Photolab 9 Masking Techniques - Sharing examples - DxO PhotoLab - DxO Forum
I´m thinking especially on the last example where I used the older “Control Lines”. Just select “Control Lines” and apply it from top to the horizon.
)
As you see even Wolfgang suggests using the Control Lines.
The old tool box has some really useful tools too and the new AI-Tools are not the best to use in all situations and sometimes the best is a clever mix of the older ones and the AT-masks.