GUIXT SAPScript using SHD0

Hi all,

I am trying to create screen variant for a standard transaction using TCode : SHD0.

i need to use GUIXT while create the screen variant.

when i put the Code in the GUIXT script, the field is not affecting although i have tested the GUI script using Synactive GUIXT and working fine.

Can anyone tell me how the GUIXT Script working with Screen Variant SHD0.