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Selecting or changing channels
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Other methods for channel selection:
Use the number keys: Press the key that corresponds to the number of the channel you wish to use (press '1' for channel 1, etc.). Use the 0 (zero) key for channel 10. For channel numbers above 10 (to a maximum of 20), use a combination of the shift key and a number key (i.e., press shift 1 for channel 11, shift 2 for channel 12, etc.).
Use the up and down arrow keys: The 'up' arrow sets the active channel to the next higher channel number, and the 'down' arrow sets the active channel to the next lower channel number.
Note that this method will 'wrap' at channel 1 and at the highest-numbered channel. In other words, if the active channel is 1 and you press the 'down' arrow key, the active channel is set to the highest-numbered channel available. Similarly, if the active channel is equal to the highest-numbered channel and you press the 'up' arrow key, the active channel is set to 1.
In multiple-channel mode, use the buttons in the floating window: The pushbuttons on the floating 'toolbar' at right of the plot area indicate the channel in use (active channel) and let you select new active channels by button clicks. The other means of changing channels still work.
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