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0-9, , , , , ,
set the state of the object as outlined below
Step forward through the list of elements of the current type to select
another element.
Step backward through the list of elements of the current type to select
another element.
iterate through the states of the currently selected object
Diagram 13: Keyboard panel
If a certain object has 3 or more states, then two consecutive pairs of keys are associated
with this object. In the display such groups of four keys (or two pairs of keys) are
drawn with a common rectangular frame. Diagram 12 shows a keyboard, where the
keys 2, 5, 3 and 6 are associated with the same turnout.
Each two symbols in the keyboard display represent two keys of the keyboard and show
the current status of the associated object. The upper symbol corresponds with the upper
key, the lower symbol with the lower key of the associated pair of keys. If the upper
symbol is highlighted in black, then the upper key was pressed most recently, if the
lower symbol is highlighted, then the lower key was pressed most recently.
One object of the currently visible group of up to 8 elements is always selected as current
object. The rectangle, that corresponds to this object, is marked with a small arrow
pointing to the right. In Diagram 12 turnout “Southtown East” is currently selected; it
can be operated with 7 and S of the keyboard.
The actions triggered by the upper or lower key, respectively, correspond to the actions
triggered by (lower) and (upper), respectively, in single object operation
and are listed in Table 1. Entering 7, for example, would cause the same effect as
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