TabIndex - Quote eugQuoteLines

Hi,

Wondering is anyone can help with a TabIndex problem.
on the Quote (base) entry form, Summary sheet, Lines grid - entering lines
-- I add a new line, enter values and tab.
-- When I tab off the last value in the first line, a new line is added - good
------ I enter a part number in that new line and tab
------ Instead of moving to the next field in the new row - it looks like the tab action is selecting the whole row.

So users have to click on the next field to enter - it's breaking their flow
Anyone found a way to change the behavior, and make the tab action move from the part number to the next field (on the new rows)?

Thanks in advance