Opens a menu where <?> is the underlined character of the menu you want to open. For example, Alt+T opens the menu Tools.
Alt+<?>+<*>
Opens a menu item where <?> is the underlined character of the menu you want to open and <*> is the item within that menu. For example, Alt+T+G opens the Gallery menu item in the menu Tools.
Activates selected button. In most cases where no button is selected, Enter is equivalent to clicking OK.
Esc
Closes dialog without saving any changes made while it was open. In most cases, Esc is equivalent to clicking Cancel. When an open drop-down list is selected, Esc closes the list.
Spacebar
Checks an empty checkbox. Clears a checked checkbox.
Up, down arrow keys
Moves focus up and down a list. Increases or decreases value of a variable. Moves focus vertically within a section of dialog.
Left, right arrow keys
Moves focus horizontally within a section of a dialog.
Tab
Advances focus to the next section or element of a dialog.
Shift+Tab
Returns focus to the previous section or element in a dialog.