"...does that extend to the under armour?"

Hehe...
Um...
Do you seriously think Tony's never tried out the possibilities of having MENTAL control of flowing, shape-changing, very -personally located- armor?
Please.
He's 'tested' that suit out six ways from Sunday.
And I bet Steve's codes work on it.
The only question I have is, would Steve be able to say what he wanted the armor to do to Tony OUT LOUD without his face matching his boots? (G)