Many thanks for reply and input. I'm working on overhauling my clumsy approach and introducing what you have suggested. I included "commented" old approach to illustrate what was working in static mode. I've got image file sets with "a1", "a2", and "a3" suffixes. However, I'm still getting one row (H list) that is displayed and it is the "a3" set. Index did ratchet 1-3, but final image set was the last read. As if a1 and a2 sets were overwritten.
Thanks in advance for all your help.
For(i=1, i<=n, i++,
sem = Open(SD1 || samplename2 || "_a" || Char(i) || ".jpg", jpg);
sem << Scale(.15);
col = Open(SD1 || samplename2 || "_a" || Char(i) || "_16col_filt.jpg", jpg);
col << Scale(.16);
LT = Open(SD1 || samplename2 || "_a" || Char(i) || "_LtIm.jpg", jpg);
LT << Scale(.16);
coltwin_1 = V List Box();
H_list = H List Box(sem, col, LT, spacer box(size(50,0)));
InsertInto(coltwin_1, H_list);
);
//sem1 = Open(SD1 || samplename2 || "_a1.jpg", jpg);
//sem1 << Scale(.15);
//col1 = Open(SD1 || samplename2 || "_a1_16col_filt.jpg", jpg);
//col1 << Scale(.16);
//LT1 = Open(SD1 || samplename2 || "_a1_LtIm.jpg", jpg);
//LT1 << Scale(.16);
//sem2 = Open(SD1 || samplename2 || "_a2.jpg", jpg);
//sem2 << Scale(.15);
//sem3 = Open(SD1 || samplename2 || "_a3.jpg", jpg);
//sem3 << Scale(.15);
//col2 = Open(SD1 || samplename2 || "_a2_16col_filt.jpg", jpg);
//col2 << Scale(.16);
//col3 = Open(SD1 || samplename2 || "_a3_16col_filt.jpg", jpg);
//col3 << Scale(.16);
//LT2 = Open(SD1 || samplename2 || "_a2_LtIm.jpg", jpg);
//LT2 << Scale(.16);
//LT3 = Open(SD1 || samplename2 || "_a3_LtIm.jpg", jpg);
//LT3 << Scale(.16);
/*coltwin_1 = Expr(
V List Box(
H List Box(
sem1,
col1 ,
LT1 ,
spacer box(size(50,0))
),
sp1 = Spacer Box( size(0, 100)),
H List Box(
sem2,
col2,
LT2,
),
sp2 = Spacer Box( size(0, 100)),
H List Box(
sem3,
col3,
LT3
)
));*/
Neil