Scroll, Insert/delete line, select/deselect line checkbox is disabled while drawing table control using wizard

Hello All,

While drawing the table control using wizard, on the "select additional table maintenance functions" screen the check boxes

1.scroll

2.insert/delete line,

3.select/deselect line

is disabled.

I have also giving the "selection col. fld" in the previous screen.

Any idea on this, that why it is disabled.

I want to check all the 3 check boxes..

Thanks,

Gejo John