The ability to add attachment from another Confluence page has been deprecated in the New Confluence Cloud Editor.
Our team used this feature to avoid having to upload images across multiple pages every time an image is updated. For example, we would upload all our images to a Files list page. And then we would add images using the ! shortcut to add the image from another Confluence page (Files list page). Any time an image is updated, we just replace the image in the Files list and the image would be updated every where it was used.
Is there a work around for this in the new editing experience? We will probably not switch to the new editor if we have to re-upload our images on every page. Also using the excerpt/excerpt include macros would add more overhead than necessary.