Is it possible to disable folder security inheritance for a specific group?

Hi,

We have a number of confidential project folders. I would like to apply specific folder permissions to a group applied to a sub folder and disable the inheritance for this user, if this possible?

So for example like this -

Parent folder

   Administrator - All permissions

   Conf - Read/Write

   Accounts - Read only

      Sub folder A

          Administrator - All permissions

          Conf - Read/Write

          Accounts - Read only

              Sub folder B

                  Administrator - All permissions

                  Conf - Read/Write

                  Account - Deny

So Ideally disable the inheritance on Sub folder A, Accounts Group. So any changes made to Parent folder permissions do no overwrite the individual permissions set on Sub folder A. I appreciate I can manually go through and do this, however I wish to apply it to a template and create projects from it and there will always be tweaks/additions required to new project so permissions are lost.

We have the same issue when providing contractors access to a certain folder buried somewhere, the permissions above are changed for some reason and without realizing the individually applied permission on sub folder below i.e. the contractors permission are changed.

Thanks in advance for any suggestions