Shanmuga, thanks you a bunch. You are not only an expert, but also a great educator. You made complex concepts so simple and so easy to understand. I spent over 2 hours last night on Oracle Documentation about the above topic, but I did not have any take-home.

So, in order to avoid users’ Security issues management on all the parent values and child values, would it be more easy and to manage Value Sets Security setting by going for the setting: Non-Hierarchical Security? This way, we can manage access to individual child values by setting the security at child values level.

In this way, please, could you confirm if the setting would be validly be enabled on the Value Sets Values screen for concerned child values.
Thank you again, Shanmuga.
Gavrobere