Child sub

Hello,

I have this strucure :

A – Page A
B – Page B
B1 – Page B1
B2 – Page B2
B21 – Page B21
B3 – Page B3
C – Page C

WHen i’m on Page B, i want listing only the sub pages (one level) BUT only the first level. Not all the childs ! I want to see only B1 B2 B3.
For the moment, they aren’t possibility with [pagelist_ext] to disable the sub-child.

I can exclude some pages but isn’t the goal because isn’t automaticly and not flexible.

Maybe will be possible on futur…
Thanks.