I'm using an external hard drive now please delete my Icloud docs and photos
My iCloud is full, I'm using an external hard drive now, want to delete photos and docs. How?
See this thread for merging two photo libraries How to restore photolibrary from Icloud,
A second method is export photos from system photo library to a desired location say download folder in finder and connect an external hard drive to the Mac , then transfer the photos from download folders into the external hard drive , hence all your photo data is saved .
You can select few photos see this article Select and deselect photos in Photos on Mac - Apple Support and delete to recently deleted folder see this article Delete photos or recover deleted ones in Photos on Mac - Apple Support ( its your choice to delete them permanently immediately or after 30 days the photos will be removed from the iCloud server ) .
In this way the complete photo data is still on external hard drive , but the space is reduced in photo library .
See this article to export photos Export photos, videos, and slideshows from Photos on Mac - Apple Support
The documents can be deleted Delete files and folders on Mac - Apple Support