Allow a user/group to edit specific pages down the level

To Manage x. Teams on 1 Page and only responsible User of the Teams can manipulate the right pages Example

1   2    3   4    5 (Level)
A

B - B1 - B11-B111

! - B2 - B21-B211

! - B3 - B31-B311
! - -  - B32-B321-B321
! - B4
C
D - D1 - D11
E - E1 - E11
! - E2 - E21
! - -  - E31

User ALPHA rights for all pages - like an admin

User BETA rights for the hole path "B" (and new pages down the path "B") - like an executive editor

User GAMMA rights for the hole path "D1" (and new pages down the path "D1") - like an  editor for the subject area of eg. technic

User EPSILON rights for the hole path "E11" (and new pages down the path "E11") - like an  editor for the subject area of eg. solar technic

OR / AND

Creator / Editor / Publisher / Adminsitrator / (Viewer + Guest) / Archiver (Deleter - Invisbler)

MAYBE POSSIBLE: with drag and drop the "USER" to the right position  in File Manager Area / Page Manager

or Select the USER and mark the area with the mouse and the STRG-Button