Layout in ALV

Dear Experts,

As we all know,

Layouts can be saved for specific users or for all users.

Layouts for all users can be selected by all users. These layouts always start with a forward slash in the name (for example, /Standard)

I have 1 layout called /test. I want to edit this layout. When I select Settings-Layout-Change and try to save my changes under the same name as /test I am not able to do it. I am prompted to enter a new layout name. How to edit the current layout available for all users? Do we need any special authorisation or ABAP code to achieve this.

Br,

Bharath

Edited by: Rob Burbank on Oct 19, 2011 9:57 AM

Code tags removed