I don't do much with force powers so I was hoping I could get some insight from more knowledgeable folks.
When using the sense power and the first control upgrade where you commit a force die and can upgrade the difficulty of an attack against you, could you commit two force dice and upgrade two attacks against you? I know the duration upgrade allows a second use, but if you can commit two dice, then the duration upgrade would allow allow you to upgrade four times if it works this way.