A possible workaround if you wish to keep using both DK and RT would be like this:
- rate your images with DK
- filter the images you want to further edit
- select and move them to a new subfolder (I’m not a DK user, but I bet it could be easily done)
- open RT and go to that subfolder to edit your desired images (and only those)
I think that’s not really difficult and takes only a few seconds more.