I need help aligning a group of components as desired. 



With the PCB Editor in Placement Edit application mode select the symbols that you want to align.

When the symbols are selected, place the cursor on the component for which you want other components to be aligned. Then select Align Components from your right mouse pop-up menu. 

Open the Options tab and specify the Vertical/Horizontal direction edge that controls the alignment. You can also specify equal spacing and a set distance between the components.