About FPS arms

hi
i can't synchronize the camera with FPS arms.
know some a documentation on how we can use the FPS arms configuration?
working with t3d 1.2, 3ds9, dts export and biped skeleton.
( with skeleton FPS arms coming like a static obj mount, in a strange position).
i noticed in 'soldierFPSarms.dae' the use 'node_EYEMOUNT' and 'node_EYE'.

is a new feature of t3d and i try to customize my models, unfortunately i can't understand the basis of this function ... FPSarms


thanks for your time anyway :)