External editor of what?
You do need to be more specific and extend your explanations for us to understand what you want to do.
If you were speaking about the duo lightroom-photoshop, GIMP works well with Darktable/LightZone/Photivo, as you can switch back and forth (LZ does it very well)
You do need to be more specific and extend your explanations for us to understand what you want to do.
If you were speaking about the duo lightroom-photoshop, GIMP works well with Darktable/LightZone/Photivo, as you can switch back and forth (LZ does it very well)