[pmwiki-users] translations in skin.tmpl

[noskule]

hi list hi pm
I try to do a translation of templatepages in skin.tmpl:

this works:
<!--wiki:$[{$Group}.SubjectDirectory] {$Group}.SubjectDirectory-->


this not:
<!--wiki: $[{$Group}.SubjectDirectory] {$Group}.SubjectDirectory 
$[{$SiteGroup}.SubjectDirectory] {$SiteGroup}.SubjectDirectory-->

It seams that pmwiki only processes 2 items, is this correct or do I somthing 
wrong. Could this be changed somehow?
thanks for any hints
grz nos