SilverScreen drawings are organized hierarchically,
in the same way as the Windows file/folder system. The SilverScreen
block corresponds to the Windows folder; the SilverScreen object
corresponds to the Windows file. Below, the blocks are indicated
with yellow icons, the objects with blue icons. The
SilverScreen Explorer serves the same function as the Windows
Explorer. It allows create and relocation of blocks and
objects within the drawing hierarchy.