so, the hover labels show in the same order of the columns in the table,
From the columns box, (middle, on the left of the data grid) just put the columns in the order you want and the labels will follow, globally.
If the levels in the columns aren't in the right order. Go into Col Info, and Column properties, to add a Value Order property. You can custom sort, or keep them in the row order, along with a handful of other options.
JMP Systems Engineer, Health and Life Sciences (Pharma)