Multiple line data entry / Multiple Record?

I have a form (Multiple Record), with the property USE ENTER T0 = TAB set.

(Attachment to see what am doing, entry of marks / score)

Now when I press enter, only the first checkbox (of all checkboxes found on the left) is checked. And the focus do not move to the next score.

What should I do??? This is urgent please… help out.

Thanks

DataEntryMarks.jpg

I want my user to go fast with typing: type score, press enter, type score press enter (like in excel)…