darktable – How can I copy only one change from history stack between pictures?

I think I must be doing something wrong. I took some sample pictures demonstrating an unusual lens filter. I also prepared a watermark to show the lens properties and camera settings, it looks like this:

enter image description here

Now I wanted to copy this over to the other 3 photos that I made. So I followed these steps:

  1. Select a picture with the watermark properly configured
  2. copy parts...
  3. select none, select watermark, ok
  4. Now select a picture to paste it on
  5. paste parts
  6. select watermark, ok

The watermark is pasted, but it also resets all the other changes, turns of applied filters and resets their settings. So how can I paste an individual change?

I am using darktable