When you click an effect preview in the Distort gallery, the effect is
immediatley applied to your selected object. However, if you want to layer or combine
effects, you must lock the first one that you apply. Then, when you select another effect
from the gallery, it will be applied on top of the first effect.
On the workspace or in the picture
list, select the objects or grouped
objects you want to modify.
On the Effects menu, click Distort.
In the gallery, click the effect you want, and then click Lock Distort.
In the gallery, click another effect to combine it with the previous one.
Do one of the following:
If you want to combine more effects, repeat steps 3 and 4.