The graphic objects from this typical picture are used during OS compilation and inserted into 
the process pictures and linked to the appropriate process tag automatically in accordance 
with the plant hierarchy.
Several block icons are available for some AS blocks. This is the case, for example, for the 
direction of flow of the medium for a valve with a defined vertical or horizontal direction. Which 
of these block icons will be selected is determined by an index number in the "type" property 
of the corresponding block icon.
Configuring OS functions
10.2 Visualization interface
Compendium Part A - Configuration Guidelines (V8.2)
Configuration Manual, 08/2016, A5E38166869-AA  231