An HRec item is a special container that uses spacers to align widgets in a form.
Spacers are one or more blanks defining an invisible element that expands
automatically. Without spacers, blank areas are ignored and the resulting form may not
display as you expect. Draw out the HRec container and then drag and drop form items
into it. Once you have placed form items into the HRec container you can right-click on
the form item to add additional spacer objects to the right or left of the form item.
The spacer objects force the spacing between the form items within the HRec
container.