How to assigned SHD0 Variants to user?

Dear All,

I want to use SHD0 to hide the u2018DO not Display Valuesu2019 in MB52 .Now I used SHD0 to do it.

My step is:

1. Created Transaction Variants:ZMB52_T and Screen Variants ZMB52_S

2. Created Tcode: ZMB52, Created Variant Groups Group Name: ZMB52.

3. Assign the user ,Set Proposal the user

Now I run ZMB52 that found all users have worked it .not the special user.

How can do it

Thanks