Completion point for containers

i want to know how do i add a completion point for a container.
i have the yang like this.
container a{
container b1{
list b2{
leaf aa{
type …

i want to add completion point to all the containers and as well to list.
please suggest i can do this

This is CLI specific and it better answered through formal support.
I would recommand reaching out to the formal support for this.

But I am curious, what is the use case you are targetting?