You can drag items from a navigator in Ted4 and Fred4 to the content tab zone, ie. article (tree) or page.
If you drag it onto an article, the content gets linked to an article; if you drag it over unlinked frames on a page, it gets linked to frames; if you drag it on the publishing listing, it becomes ready to get published on the related channel.
See also Dragging items on content tabs.
Drag and drop is not supported in the GN4 browser.