Ally Targeting - How do you do it?

[Zidaryn]

Because the party member cycling keys are just the move cursor up/down keys, the keybinds are on the System tab.

Move Cursor up/Cycle up through Party List
Move Cursor down/Cycle down through Party List

By default, these should be numpad8 and numpad2.

I just went and tried that. It lets me highlight and cast one spell on that person. But the next spell I cast is on the person that I have targeted... I want to be able to change the person I have targeted. (IE: The person with the Carrot shaped pointer over their head)