Specifying one mask as the target for animation

As soon as you draw the first point on your first mask for a layer, the Layer window displays a Target pop-up menu, which you use to specify a mask as the target for all new mask shapes.

When you create a new mask shape while a mask is selected in the Target pop-up menu, the targeted mask is replaced by the new shape. You can change this behavior by selecting None from the pop-up menu so that any new mask shape you create in the Layer window creates a new mask instead of replacing an existing mask. You can also lock a mask to prevent changes to it. See Locking a mask.

To specify a mask as the target of all new shapes:

In the Layer window, select the mask name from the Target pop-up menu.

To specify no mask as a target for changes:

In the Layer window, select None from the Target pop-up menu.