rem: sShortcut = PLMakeString("Shortcut");
add: sShortcutMask = PLMakeString("ShortcutMask");
context: make_keys(){    if (sApplications!=NULL)        return;    sApplications = PLMakeString("Applications");    sCommand = PLMakeString("Command");    sName = PLMakeString("Name");    sHost = PLMakeString("Host");    sWorkspace = PLMakeString("Workspace");    sShaded = PLMakeString("Shaded");    sMiniaturized = PLMakeString("Miniaturized");    sHidden = PLMakeString("Hidden");    sGeometry = PLMakeString("Geometry");    sDock = PLMakeString("Dock");    sShortcut = PLMakeString("Shortcut");    sYes = PLMakeString("Yes");    sNo = PLMakeString("No");}