Dear Monks

I have three data categories; Business Units, Groups and Functions. Each Business Unit has a number of Groups, and each Group has a number of Functions. This data is stored in a query called Hydra-data in MS Access database (sorry).

Here is an n Example of this data:

IT,Development,GUI
IT,Operations,Trading,BackOffice
IT,Eng,SAN
FID,FuturesMarket
FID,Trading,Secretaries
IED,Quants
IED,CashSales,USSales
IED,FarEast,Japan
IED,SaleDesk1,CashSales,PrimSales
IED,SaleDesk2,CashSales,UKSales
IPB,ClientSevices,International


So I started by looking at this bit of code

# c:/pel/bin
use strict;
use Tk ();
use Tk::TList;   
my $mw = Tk::MainWindow->new();
my $image = $mw->Getimage('folder');
my $tlist = $mw->TList(-orient => 'vertical');
for my $text ( qw/IBD IED IPB IT IFO IIM ER LEGAL FID TRESUERY CORPSER
+V CORPSEC/ ) 
{
    $tlist->insert('end',
                 -itemtype=>'imagetext', 
                 -image=>$image, 
                 -text=>$text);
}
$tlist->pack(-expand=>'yes', -fill=>'both');    
Tk::MainLoop;
[download]

But this code doesn’t serve my need, because TK::TList is pointing at /IBD IED IPB IT IFO IIM ER LEGAL FID TRESUERY CORPSERV CORPSEC/

Is there away where I can get Tk to represent this data in a directory like hierarchy structure, similar to Tk::DirTree. So I can have a display of folders representing the Business Units, then inside those folders another folders for Groups and then for functions?

Also, if I read the above data into a hash then can I use TList to do the job?

Thanks for your help