config:config-item-map-entry underspecified (ODF all version)

Dear ODFers,

In 2.11.5 we have:

----b
The <config:config-item-map-entry> element represents an entry in an
indexed or named settings sequence.
----e

* What is a "an entry in an indexed or named settings sequence" for? How
does this differ from a plain "setting"?

* It should be stated that the *name* of this thing is specified by the
content of the config:name attribute (assuming this is the case). 

* Are there any constraints on names (can two be the same? At different
levels of nesting maybe?) for any names that must be unique, why is the
name not an ID?

* There seems to be a suggestion from the name that a "map" is being
described here. In what sense is this true (do not all config-item
things constitute map?)

* How is it envisaged the nesting of similar structures permitted here
should be used?

--
Alex Brown
Convenor, ISO/IEC JTC 1 SC 34 WG 1
Editor, ISO/IEC 19757-5 (Extensible Datatypes)