I need to build a schedule editor on the lines of an interactive gantt chart. the user clicks on a schedule which corresponds to the 24 hours in a day and the length of the schedule determines the period a worker is ON or on break. I have the time values for the schedule stored in a table and want to chart these on a form. Also, the user has the option to graphically vary these time values and update the table

I saw something similar to what I need on this forum with a query on Gantt charts posted earlier. Any ideas on how I could accomplish this would be most welcome.