The New button shows the New Control Dialog for adding controls to the form.
Move collection with the cross direction buttons. The central button switches the move-grid between 1 and 4. The move is to the move-grid if not already on the grid.
Align collection with shift + a direction button.
Size collection with ctrl + a direction button.
The shift key causes the following buttons to act down rather than across.
Center -- center collection
Size -- size collection to the selection width
Space -- space 3 or more controls across the form
Touch -- space collection so they touch
Minus -- remove space
Plus -- add space