add_list

• short description:
• add an item to the active list
• sample call:
• (add_list "my list item")
• function signature:
• • number of arguments:
  • 1
  • argument 1:
  • string item to be added to the list
  • return value:
  • the added string or nil on failure
• description:
• This function performs an action on the currently active list, depending on the operation code and index set by the most recent start_list, see start_list for more.