Show all windows OS X keyboard shortcut for mavericks
The keyboard shortcut to show all windows for an application is Ctrl+Down then switch between these windows using arrow keys.
To change the keys used for the shortcut to whatever you want, go to System Preferences-> Keyboard-> Shortcuts-> Mission Control-> Application Windows.
It's under the system preferences for Mission Control: there's a shortcut defined there for "Application windows", currently set to ctrl + down arrow
Works for open and minimised windows for your currently chosen application.