your R gun angles are on the very bottom left corner of the screen.
then to the right it shows your R ammo
then the T ammo
then the T gun angles
then the plane launching panel.

i hope you dont need a gun menu to memorize how to raise/lower gun angles

At the bottom left hand of the screen you'll see your gun angles for both R and T slots.
The R slots are on the left as the T slots are located on the right.

i see the gun angles but only for my T mounts

You sure? Your gun angles are on the left hand side. The new plane overlay is on the
right hand side.