Datacard and TAB key

TAB key allow to move on the next text box when data is entered in the card fields.
I noticed that the order followed by the TAB key is basically LEFT TO RIGHT and TOP TO BOTTOM so if you have some groups of vertical aligned fields like (group A, B and C)

A1 B1 C1
A2 B2 C2

TAB will switch focus from A1 → B1 → C1 → A2 → B2 → C2

instead of A1 → A2 → B1 → B2 → C1 → C2

Is there a way to change this behavior?

The Tab Order is controlled from the Card Editor. It’s been years since I’ve had to create a new card, but I think I recall the order being based on the order you select the controls. So once you have the controls placed where you want, go through selecting them one at a time in the desired order and then save the card.