AX 2009 Reports - flatten the tree

I need to modify the SysSecurity Report so it shows the tree flattened (don't worry - I'm making a copy) so it can be easily imported into Excel for use by our auditors.

For instance, the report now has lines like this:

Permissions                   Security Keys [this is the header]

View                               Accounts payable [this is the parent security key]

View                                       Daily [this is the a first-level child security key]

View                                              Backorder Purchase Lines [this is a 2nd-level child key]

View                                              Blanket Purchase Orders [this is a 2nd-level child key]

View                                              Delayed Purchase Orders [this is a 2nd-level child key]

What I need is an Excel-friendly version:

Permissions                   Security Keys [this is the header]

View                               Accounts payable [this is the parent security key]

View                               Accounts payable > Daily

View                               Accounts payable > Daily > Backorder Purchase Lines

View                               Accounts payable > Daily  > Blanket Purchase Orders

View                               Accounts payable > Daily >  Delayed Purchase Orders

I've looked through the relevant classes, and I see where the tree is being developed, but I do not see how to make it flat, as above.

This seems to be where the tree is being built (in classe "SysUserSecurityReport"):

container getData()

{

   FormTreeControl treeControl = dialog.formRun().control(tree.id());

;

   infolog.mayReloadMenu(false);

   this.initSysSecurity();

   sysSecurity2.parmTree(treeControl);

   sysSecurity2.load();

   sysSecurity2.initViewControl(false);

   sysSecurity2.initSecurityTable();

   sysSecurity2.buildTree();

   sysSecurity2.expandForReport();

   sysSecurity2.drawTree();

   infolog.mayReloadMenu(true);

   return SysUserSecurityReport2::extractData(treeControl, this.parmMenu() != '');

}

Is there a way to "draw the tree flat"?

Thanks! Happy long weekend!