Settings in the "Gainers & Losers" widget

Use the "Widget settings" icon to open the "Settings" dialogue window for configuring the widget.

Alternatively, you can use the "Settings" command in the widget menu.

Here, you can make the following settings:

Specify the number of securities ("8" by default – 4 risers and 4 fallers; the maximum is "20")
Specify the number of decimal places ("2" by default, possible values are 0-4)
Enable or disable the push data feed

For more information about the widget settings, see Commands in the widget menu.