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selecting “Double Slip 2” for single object operation according to section 2.3 and entering<br />
.<br />
If an object has 3 or 4 states and a second pair of keys is associated with it, then the upper<br />
or lower key, respectively, of the second pair correspond to the actions triggered by<br />
(lower) and (upper), respectively, in single object operation and are<br />
listed in Table 1, too.<br />
28<br />
2.6 Object Selection<br />
There are two policies for selection of objects. The first and default is selection by name<br />
and the second is selection by numbers.<br />
Selection by Name<br />
This is the default selection policy. If this policy is selected, then all objects are listed in<br />
alphabetical order. Scrolling through these lists in the particular screens described<br />
above follows the alphabetical order of the objects.<br />
The number, by which each object can be accessed quickly through numeric keys, corresponds<br />
to its position in the alphabetical order.<br />
In this mode all objects can be accessed (if their access is not restricted by privileges -<br />
see below).<br />
Selection by Number<br />
Each object in TrainController can be provided with a handheld number. This<br />
number must be unique for all objects of the same type (e.g. for all turnouts). If the policy<br />
to select objects by number is selected, then objects are listed according to the order<br />
of assigned handheld numbers. Scrolling through these lists in the particular screens described<br />
above follows the order of handheld numbers.<br />
In this mode objects can only be accessed, if they are associated with a handheld number<br />
(and if their access is not restricted by privileges - see below).<br />
The default selection policy is valid for all handhelds and determines the initial setting<br />
at the beginning of the first operating session. Additionally it is possible to change the<br />
selection policy of individual handhelds at any time during operation. In this way each<br />
handheld can be set to the preferred policy at any time during the session.