Hi
A delete button (for files & folders) exists with the default template (build 260).
I send you the template in English that I included in the French version of HFS.
Among the various options allowed with this template, there the possibility to rename files and folders (in a folder where the upload is allowed). By cons you must write (or paste) the name of the file or folder to rename, I failed to act on a selection.
When you load the template, several groups are created in the user accounts.
You associate users to the group concerned for grant permissions.
One or two options do not work with the English version of HFS (eg #replace# )
It's a good starting point for you I think.