>We may put this as a rule. I've found a workaround to achieve the listing by AllTrim(first)+' '+AllTrim(second):
>
>index on first - (' '+second) tag whatever

I think this tag would give incorrect results if either the first or last name contained spaces. For example:

Van, Jim
Van Deusen, Jim

would sort as

VAN DEUSEN JIM
VAN JIM

However, perhaps using a different delimiter than a space would work. I wouldn't bother, if the value is going to get padded out to the full lengths of the constituent fields anyway.