The application was upgraded from 7.1.5 to 7.4. The tab key in table layout is only moving to the next column in the row if the column is editable. Is there a way to make tab key move horizontally (right now it moves through the first column of each row) work even when the row in not editable?
I was able to observe the same behaviour in the UI gallery table layout. In the action set for the grid, there is no tab key as an event. So I assume that you will have to add a script to achieve your requirement.