Packs child layout elements horizontally.
HBOX [identifier] [ ( attribute [,...] ) ] layout-container [...] END
The HBOX container automatically packs the contained elements horizontally from left to right.
Contained elements are packed in the order in which they appear in the LAYOUT section of the form file.
No decoration is added when you use a HBOX container.
By combining VBOX and HBOX containers, you can define any alignment you choose.
HBOX GROUP ( TEXT = "Customer" ) { ... } END TABLE { ... } END END