Keynote

Position and align objects in Keynote on Mac
You can align multiple objects relative to one another, or specify an object’s location using its x and y coordinates.
Note: If an object is placed inline with text, you can reposition it only by dragging (or cutting and pasting) it to a new location in the current text flow or to another text box or shape. To move an inline object outside a text box or shape, see Move an inline object to the slide.
Tip: You can open the Arrange controls in a separate window that you can move anywhere. Choose View > Show Arrange Tools (from the View menu at the top of your screen).