Modifying this control will update this page automatically
(or choose View > Show Grid).Hide the dot grid: Click 
before you can align it.
Do any of the following:
Align multiple items vertically or horizontally: Choose Arrange > Align Objects, then choose an option.
Equally space three or more items: Choose Arrange > Distribute Objects, then choose an item.
Tip: You can also click the Arrange Inspector button Arrange items on a Freeform board on Mac