Select the objects holding down the Shift key, then click on Draw, then Align.

 
To arrange or change the order of objects

Select the object to change, then click on Draw on the toolbar, then Order.

To move all objects together

Select all the objects holding down the Shift key, then drag to the new position.

To rotate the object

Select the object, then click one of the green handles and drag in the direction required.

To make all the objects smaller

Select all the objects holding down the Shift key, then click on one of the corner handles and drag to the desired size.