I activate the other mode with a bool var wich gets activated when I pick up a bow/sword/… (on the 2nd picture the links between friendly and the other modes) (normally they should already blend smoothly). I use a different set of anims in all my modes (bow/two hand/…) -> they are used in the 3rd picture
1:14 -> here I blend between different stuff. In my case between the upper and lower body animation