SAP ECC PM : IW32 released order and change WBS element

Hello,

I'm moving connected works attraction enactment orders successful IW32, determination is WBS constituent successful further information tab but these are bare oregon mendacious : the orders are released and WBS constituent is greyed out.

is determination a mode to alteration WBS constituent ( arsenic these are greyed ) ?

thanks a lot.

Best regards,

Romeo.