Adding Text to Bar in Gnatt Chart
 

Is there a way to add text to the beginning or end of a task bar? Like end date, or whatever else is defined. I see it automatically adds resources to the end, but what if I want to choose.

This is available in the "View Options" pane (listed in the View menu). In OmniPlan 1.1.2, it's limited to just 3 items you can turn on or off. In 1.5 (which is in beta right now) there's a lot more customizability available.