Recent convert from Windows and from what I found Safari has no clear history shortcut so I had to add my own. I was hoping to add Cmd+Shift+Delete as the shortcut but apparently you can't do that as "System Preferences" just silently ignores that when you try to add that combination. As a result I added Cmd+Shift+D as the shortcut to clear history. The problem is sometimes it will work and other times it will do an "add to reading list" instead for some reason. I just want to be able to clear my history and cookies with a keyboard shortcut which firefox does with Cmd+Shift+Delete so any help would be appreciated.