Snap servers and permissions - why is there no write pwemission for folders, etc.

I'm trying to set up a Snap server 2200 on an NT domain.  It sees all the NT users OK.  I want to set up permissions to limit access to files and folders and can't get it right.

First, I am trying to keep people from deleting anything - shouldn't be able to delete folders, shoulnd't be able to delete files.  They should be able to create, open, edit, copy (but I guess not move, since that would involve a delete?) any file or folder.

I have network shares set to everyone - full access.

FOr folder / file   permissions, I only have  no access, read, add, read and add, change and full control.  The help pages talk of a write option, but I don't see it here.

It would seem that read and add or change would be what I want, but can't seem to get it working...
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First, you will need at least 2 user groups - admins and power users who can do all file maintenance,
then (2) normal users who can only read, edit, open and save (save implies copy).  SO you need to make all users members of one or the other group.  For the regular users, you need to restrict permission on all the drives and folders on the SNAP to not have any delete privs (a series of checkboxes).  No with the 2 groups correctly defined, on each share on the snap, you attach the user group for the permissions level that you want each to have, for each folder.  It is a long process, but once done, it will do what you want.

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