Label Offset for MarkerSeg

[#1]

I need to have a label offset for all my labels (if I choose to label a row) on my plots.

So, I have 8 plots through "Group X". In each plot I have exactly 30 points.

I'm trying to do the following:

rgb = Report (gb);
For( i = 1, i <= 8, i++,
frame = (gb << report)[FrameBox(i)];
seg = frame << Find Seg( Marker Seg( 1 ) );
for(j = 0, j < 30, j++, 
seg << label offset({j, 10, -60} )
);
);

But it doesn't work. If I spell out numbers 0 through 29 in label offset it works perfectly.

Like this:

seg << label offset(
{0, 10, -60} ,
{1, 10, -60} ,
{2, 10, -60} ,
{3, 10, -60} ,
{4, 10, -60} ,
{5, 10, -60} ,
{6, 10, -60} ,
{7, 10, -60} ,
{8, 10, -60} ,
{9, 10, -60} ,
{10, 10, -60} ,
{11, 10, -60} ,
{12, 10, -60} ,
{13, 10, -60} ,
{14, 10, -60} ,
{15, 10, -60} ,
{16, 10, -60} ,
{17, 10, -60} ,
{18, 10, -60} ,
{19, 10, -60} ,
{20, 10, -60} ,
{21, 10, -60} ,
{22, 10, -60}, 
{23, 10, -60}, 
{24, 10, -60}, 
{25, 10, -60}, 
{26, 10, -60}, 
{27, 10, -60}, 
{28, 10, -60}, 
{29, 10, -60} 
);

What am I doing wrong? How do I script setting offsets for all 30 points?

I tried to play with Substitute(), Expr() and Evl() - but no luck.

[#2]

This one has two evaluation hurdles:

1. Lists don't normally eval their items
2. the label offset message doesn't eval its argument

I think this takes care of both.

Eval(Eval Expr(seg << label offset(Expr(EvalList({j, 10, -60})) )))