EXTRA FIELDS GROUPS:

GROUP 1: General Data 1
GROUP 2: General Data 2

EXTRA FIELDS/GROUP:

GROUP 1:

Group1Field1
Group1Field2

GROUP 2:

Group2Field1
Group2Field2

TABS IN FRONTEND (Default tabs, and after these):

GROUP1				GROUP2
======				======
Group1Field1: value		Group2Field1: value
Group1Field2: value		Group2Field2: value