Changeing folder permissions inside a folder

Nextcloud version (12.0.3):
Client version 2.3.2 (build 1)
Operating system and version (Windows 10, 7,8)::

Is there a way to change folder permissions in a folder that has been shared.

we have a folder folder A inside folder A is Folder b and c and d and so forth.

We have shared Folder A but want to restrict access to folder B C and D but give access to folder E.

is it possible without it creating a new download for the client?