IF Escope

how can I do this with tbs ?

if(cond)
{
     ........
      if(cond)
      {
            ............
               if(cond)
               {
                  ...............
                }
       }
}

I've tried do [tbs_check;if[...];then=[tbs_check;if[...];then]]
but it seems doenst works

thanks

This should work:
(for TBS 2.x, use [onshow;block=div;when ...])