Ways to use 'para'

Ways to use 'para'
 

I am aware of the different ways to use para but sometimes it still confuses me. I know you put it before an unconjugated verb if you want to say in order to _______. But what if I have a sentence like she is important to the story would I say ella es importante para el cuento? Or if I'm saying the computer is easy to use would it be La computadora es fácil para usar?

Regla general (cuando no se traduce como "in order to"):

Adjetivo + para + sustantivo = Es importante para el cuento.
Adjetivo + de + verbo = Es fácil de usar.


Un saludo sincero.