Constants: Context help

Parent: $root.$constants

kHelpContents Request context help command to open the help file at the contents page
kHelpContext Request context help command to display context help in a separate window
kHelpContextMode Request context help command to enter context help mode
kHelpContextPopup Request context help command to display context help in a popup window
kHelpQuit Request context help command to quit context help (closing the help window if necessary)