ExpressionQuestionHelp
From LimeSurvey Manual
Hint: This features is available starting in version 4.0.1
Adds help suffix for all questions in Expression Script. {QCODE.help} shows the current help text of question with code QCODE.
If you want help for questions with sub-questions, you must activate the ExpressionQuestionForAll plugin.
Before using these functions : the plugin must be activated in Plugin Manager.