jed problem with column block (set_mark_cmd)

[<Lechee.Lai@xxxxxxxxxxxx>]

Hi,

  How can I do rectangle block via “set_mark_cmd()” for this case 

  

++++++++++++++++++++

Define foo_rectangle_block()

{

           xxxxxxxxxxxxx

     cccccccccccccccc  

     bb

}

 

+++++++++++++++++++

 

How can I rectangle block 

{ 

          xxxx 

cccc 

bb 

}

 

Thanks

Lechee