Yes I had done that statically, setting it to "help me" in the class module but how to do it dynamically from code behind?

I need to amend a class module which shows a calendar view of a schedule with ranges of dates held, for booked courses, in database shown in red. The control generates a table cell for each day. I need to show a tooltip whenever the mouse is over any of the cells for a course booking showing data for the course name and a delegate list from a database. The module uses HTMLTableCells to produce a calendar type display. I've added a property, ToolTipText to the class module but don't know how to proceed.