How to auto the morph and doll ?

Those are the same steps for morph and doll, so we take the morph as example below.

First we set the favorite morph at the morph screen by push the star.

Seconed we set the morph at the character stats window.

Third we buy the morph scroll from the ingame general merchant and in the inventory window we drug the morph scroll down to make it active.

With all three steps, now the character would auto morph and doll.