The EE Professionals have teamed to develop a really nifty and easy to use project mgmt. tool. In order for it to work correctly we need a specific "rule" to apply. The most important rule is;
No two tasks may overlap with regard to "dates", when considered "in the critical path" or coded "C" in Column B. What would be helpful is if a message box showed up with "Please pick a different date due to a conflict in the Critical Path".