You can add an axis to the scene and then make it the parent of another element. Use this method of parenting additional axes to create complex wipes.
For example, you can create two masks that change shape and size independently but are parented to another axis translation in the same direction at a constant rate.
Any transformations applied to axis2 are applied to axis1 and its surface (image1). If axis1 has any transformations, they are added to the transformations from axis2. For example, if axis2 is set to 500, 100, 0 and axis1 is set to -50, 20, -30, the positions are accumulated and applied to the surface. In this case, image1 is positioned at 450, 120, -30.