How do i make a hold / shooting animation with another animation such as walking?

Help and Feedback Art Design Support
#1

Never really done any sort of animation so i was wondering how i would have a shooting animation while a player was walking?, would i need a entire shooting&walking animation for that? or is there a easier way to do something like this

#2

Use animation priorities, set the animation priority to action for holding and action2 for shooting and it will overlay the animations, no need for a walking&shooting animation.