Once it's in your document window, navigate to whichever folder you want to place it in and just click on the + sign.

It will ask you various questions, normally say yes to everything but best read it first!!!

Saved to library for use over and over again.

I do this with stories where the character will have the same clothes and props in lots of different renders, like my new story "Land War 2105"

Injustice will be avenged.
Cofiwch Dryweryn.