Add another group with the same ACL

Hi i would like to know how to do the following :

i have some security groups and a fileserver.
Now i want to check NTFS permissions and add a second group that has the same ACL as an existing one.

So if a group "GG_FDR_test" has modify this folder only rights 
then i want to add a group "Remote_GG_FDR_test" that has modify this folder only rights

every group that starts with "GG_FDR_" als has an group that has the same name but starts with "Remote_GG_FDR_"

Get all Folderpermission 3 levels deep for groups that start with "GG_FDR_*"
for every group it finds copy ACL 
Add second group "Remote_GG_FDR_*" and set same ACL on this folder.

sorry for the lack of info but i dont know how to start with this.