Change the stacking order using commands

To move an object to the top or bottom position in its group or layer, select the object you want to move and choose Object > Arrange > Bring To Front or Object > Arrange > Send To Back.

To move an object by one object to the front or one object to the back of a stack, select the object you want to move, and choose Object > Arrange > Bring Forward or Object > Arrange > Send Backward.