Indexed output 2D with 3D fields

[aclsce]

Now, when I use "indexed_output" field attribute on 3D fields, I obtain the compression on the 3 dimensions (x , y, depth).

        int grid_T_moor_3D_points(grid_T_moor_3D_points) ;
                grid_T_moor_3D_points:compress = "deptht y x" ;

It would be very useful to have the compression only over the horizontal domain (and not over the axis).