It’s not a processing limitation: Aperture let you compare processed raws at any magnification with synchronized scrolling of the images fifteen years ago.
HI
Since I opened this feature request in August 2019 in DPL2 it is very strange for me not having it in DPL7
On top of that it is the topic with the most votes…
It is not strange to me at all. In any given year perhaps 8 or 10 new features are added, and most have not be been specifically requested by us. The implementation of any requested features from the backlog is relatively rare.
Mark
I think you exagerate a lot the meaning of feature.
I consider the full PhotoLab experience to include both Viewpoint and FilmPack. Anything less would be missing valuable features. I track the new features every year. Some years there are a few more and some years a few less, but on average there are 8 to 10 features added that were not there the year before. Some features are obviously more major than others, some people may not find certain new features useful, and some features are unfinished and need additional functionality to be competitive such as LUTs. But on average my count is correct.
As a result, my expectations for what will be added each year are pretty low. There are dozens of backlogged features that are ignored and many other desirable new features that are available in competing software that need to be added. With only 8 to 10 new features across the entire PhotoLab suite each year, I am concerned whether DxO will be able to catch up.
Mark
Not listening to customers’ requests is a very good way to lose them, imho.
We have a Reference mode. Thank you, DxO!
Now we can all start complaining about how they implemented it…
Yes it is fantastic.
I think a keyboard shortcut for “use image as reference” would be helpful.

I think a keyboard shortcut for “use image as reference” would be helpful.
Indeed ! As lot of other keybord shortcuts.
It seems that photolab isn’t broken down into basic functions, but built with huge code tangles that don’t make it easy to do.

It seems that photolab isn’t broken down into basic functions, but built with huge code tangles that don’t make it easy to do.
Agreed. This provides for inconsistencies in the UI and side effects.
Why programs have to be written every now and then

I think a keyboard shortcut for “use image as reference” would be helpful.
Agree. If you are on a Mac, Keyboard Maestro is able to turn menu items into keyboard shortcuts. Theoretically recent versions of macOS itself can do so, but less consistently. Go to Keyboard in System Preferences and look for shortcuts there.