You use the AP Elements panel (Window > AP Elements) to manage the AP elements in your document. Use the AP Elements panel to prevent overlaps, to change the visibility of AP elements, to nest or stack AP elements, and to select one or more AP elements.
AP elements are displayed as a list of names, in order of z‑index; by default, the first created AP element (with a z‑index of 1) appears at the bottom of the list, and the most recently created AP element appears at the top. You can, however, change the z‑index of an AP element by changing its place in the stacking order. For example, if you created eight AP elements and wanted to move the fourth AP element to the top, you could assign it a higher z‑index than the others.