Refer to the following information relating to the superimposition keys:
• The first time the (invisible) sensitive areas are activated, the superimposition
keys will only be displayed without any further functions being executed. They
will then disappear again after 30 seconds if no further action is taken.
• If an area is tapped or clicked again while the superimposition key is visible,
the corresponding function will be executed, and the superimposition keys will
remain visible for 10 more seconds.
• If no further actions are taken, the areas under the superimposition keys,
which are now invisible again, will be active for a further 20 seconds. The keys
will be displayed again if actions take place during this time.
• If 30 seconds pass without activity, the display will return to its initial state.
Since some displays are too long to be shown completely, a small yellow diamond on the right-hand
edge indicates where you are in the list. You can scroll through the list of displayed values using the
superimposition keys (cursor keys).
Figure 7.4: Position in longer display lists
Other menu control properties include items which can be selected on the display such as hyperlinks,
actions, drop-down lists and input boxes.
You can select all the entries in question using the superimposition keys.
This selection then has a background or is highlighted, such as “Day” in the date display in Figure
7.3 or “Device monitor”, “Date” and “Time” in the following examples.
Not all displays have this option, see Figure 7.1.
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