manual staff switch

[Ole Schmidt]

dear all,

I have a score like the excerpt below and want to switch the last  
note of the second
staff (staffClassicalGuitarII) to the first staff.
Is it possible to use \change Staff = ....command in such a  
construction?
And if yes what would be the right syntax?
Unfortunatly  I do not understand once again how to apply the  
information from the manual to my example...

thanks for help

ole

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\version "2.11.36"

staffClassicalGuitar =  \include "GitarreEins.ly"


staffClassicalGuitarII = \include "GitarreZwei.ly"

\score {
        <<
\new StaffGroup {
                        \set StaffGroup.instrumentName="Solo"
                        \set StaffGroup.shortInstrumentName = "solo "
        <<        \staffClassicalGuitar
                \staffClassicalGuitarII >> }
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%