Regarding the Icon Type, for someone like me who produces a lot of icons, small, fast and especially drag-n-drop tools are very useful, at the moment for the creation of icons for AROS One, on OS3 I use "IconType", this tool allows me i little time and easily to edit hundreds of Icons.
Using mouse and menu would involve so much extra time, this applies to both Icon Type and Image Change, if I then need to copy only Position, Tooltype, Image, Stack Size or data Drawer, I use IconCopier, although now IconCopier has become obsolete.