# in your PmLoader module... 
  sub import 
  {
     ## do whatever you need to do, and then
     eval "
       require $module;
       $module->export_to_level(2);
     ";
     ## obivously, don't forget to check for errors
  }

##</code><code>##

   eval "require $module";
   ## check for errors...
   eval "$module->export_to_level(2)";
   ## this one can/may fail, so may be just warn?
   ## or I guess you could check by doing
   ##
   ##   $module->can( 'export_to_level' );
   ##