gettind write authority to a mounted NFS drive

I have mounted an NFS drive over a folder in my IFS Using the Following 
MOUNT TYPE(*NFS) MFS('DOCSERVER:/SYS/DATA') 
MNTOVRDIR('/DEPTS/Purchasing/POAttachments/') 
OPTIONS('rw,suid,retry=5,rsize=8096,wsize=8096,timeo=20,retrans=5,
acregmin=30,acregmax=60,acdirmin=30,acdirmax=60,hard') 
 This mounts the folder, I can see the things in the folder but I can't 
create subfolders..
There are three entries in the permissions view in Ops Nav
qsecofr has all authorities including write authority
*nousrprf all authorities but write
(Public) who also has all authorities but write.
 I tried to add myself but I get the message
CPFa0ad text: Function not supported by file system:
com.ibm.as400.access.AS400Message@2a4488a8
 Is there any way to mount an NFS file system that will allow for the 
creation of subfolders by anyone except qsecofr?