Under the Window functions toolbar there is a button called Window help . By using this button you will access the help section for the procedure window that is active in the program window.
There is also another help button called Menu Help in the toolbar Menu Help. If you use this button you will open a description of the program window. This help button is only visible when you don't have any procedures open, but it can manually be displayed if you right-click in a toolbar and activate the Menu Help.