Occasionally this works but in my build there are a few weird things that happen if you do it… So if I select a group of images in a row the first time I do it then they all will display the pasted history stack. But after that it is like multiple selections don’t clear. The original images stay gray and selected and the new ones are added. Also sometimes it appears esp if I select non sequential images that only the first one changes but if you go to the others the history pointer is not updated to the top of the stack from the pre paste position . The extra steps have been added. If you manually move the pointer up in the stack then you can see the data was pasted. It seems to behave a bit hap hazard. And the interesting thing that happens also is the cached images in the film strip can get out of step. When you are on the image the preview and the film thumb can match but when you advance to the next image the film thumb can still be the one that you created before with the paste even though you revert it. I was playing around by simply pasting an instance of CC to make images BW so it was easy to see if the paste was effective… This is really hard to explain as a few things seem to happen. I may just make a short video to demonstrate it… But it does seem that there is the potential to so this in darkroom but on the build I have its a bit erratic at the moment…