Always the way
For future reference, most (not all) items which belong in specific places within the System Folder, when dragged onto the System Folder (and released), will tell you where they need to be put, and ask if you want them automatically moved there.
The same thing works if you drag a bunch of files, each with different destinations.
Try it. Grab a control panel and an extension, take them to the desktop, then drag both at once to the System Folder.