When analyzing a change impact on a part, we go to the "Where used" tab to see the parents on the part and analyzing the deeping of the impact.
But we can have important amount of usage (often more than 20, sometimes more than 50) whole important percentage are obsolete and does not need to be analyzed.
Unfortunately, it is impossible to display the LifeCycle State in the "Where used" tab ; this impacts significantly the efficiency of the analyse.