Matter Realised By A Discontinuous Minor Process?

concerning	participant identification
minor Process	Range

as concerns	participant identification
minor Process	Range

                      

as far as concerns	participant identification
minor Process	Range

as far as	participant identification	is concerned
minor	Range	Process

This last formulaic expression, unlike a clause, cannot be expanded with further transitivity functions.  Like a prepositional phrase, only the element functioning as Range or minor Process can be expanded.

The form is that of the 'respective' conjunctive Adjunct: as far as that's concerned (Halliday & Matthiessen 2014: 108).

Attribute As Theme Of Elaborating Hypotactic Clause Nexus

Homosexual and jailbird	was	he	nevertheless	as bad as he was painted
= β	α
Theme	Rheme
Attribute	Process: attributive	Carrier		circumstantial Attribute

Halliday & Matthiessen (2014: 469-70):

With non-finite elaborating hypotactic nexuses, there is a special construction where the dependent precedes the dominant; … These elaborating clauses are always ‘intensive attributive relational’ ones where the Process is implicit and the Attribute is typically the only explicit element of the clause. … the nearest agnates are non-finite and finite non-defining relative clauses … and this explains among other things why clausal elements may be present together with the Attribute (thus showing that the nominal group is an element in a separate clause rather than an element in the clause that follows) .... The effect of the construction is to give thematic status within the elaborating clause nexus to the Attribute of the elaboration.

Unbriefed on the subject of the glabrous playwright and novelist	the president	looked	wildly	about	for his minister of culture
= β	α
Theme	Rheme
Attribute	Behaver	Process: behavioural	Manner	Location: orientation	Cause: purpose