Applescript 击键命令以显示Safari中的所有书签不工作

我正在尝试一个简单的击键命令来显示Safari 5.0.2中的所有书签，但它不起作用-

tell application "Safari" to activate
tell application "System Events"
    keystroke "B" using {option down, command down}
end tell
end

有人能告诉我哪里错了吗

谢谢

Miraj

试一下“b”：

tell application "Safari" to activate
tell application "System Events"
    keystroke "b" using {option down, command down}
end tell

大B转换为Shift+B