I fully agree with Joachim. The way of Capture One is much easier, maybe with better results in a shorter time. Sorry to say that, but Lightroom in this case is the “reference.” There is no easier way to adjust perspective distortions. But Lightroom is no longer my postprocess tool. 😉
BTW: Perspective distortions are internally corrected by the Leica SL3 (switch for on or off). The used lens (name, technical details) must be known to the camera. The results with Lightroom are pretty much the same as with the SL3.
It would be truly wonderful to have access to significantly simpler methods in Nitro for rectifying perspective distortions. Maybe you could set it on the list for the next upcoming releases 😉
Anyway, thanks for this great software, which I always use for the postprocess, and I am delighted with the results.