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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.

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