User defined shares only have limited possible parameters
such as path, guest ok, etc. This parameter allows usershares to
"cloned" from an existing share. If "usershare template share"
is set to the name of an existing share, then all usershares
created have their defaults set from the parameters set on this
share.
The target share may be set to be invalid for real file
sharing by setting the parameter "-valid = False" on the template
share definition. This causes it not to be seen as a real exported
share but to be able to be used as a template for usershares.
template_share