Crouching and throwing

[AlwaysIdeas]

Hello,
Can someone please tell me whether I am right about this or not. For my game, Eternal Cries, I need crouching and throwing sprites, so would I just set that action to a certain key, or does it envolve scripts? If so, please help.
Thanks in advance.

[:)]

you could do it that way, make a totally new spirit set different for the main just walking one, and have it use a switch to when the button is pressed the spirit set is changed to the one of it crouching, and then back to the normal one/.

[AlwaysIdeas]

What about if the crouching sprite only stays crouching while the key is held? Are scripts required here, and how?