There are 3 types of push actions that can be performed, depending on how long you hold down the button, knob-switch or display widget:
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User actions can be divided in 3 groups:
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* '''Knob rotatation:''' You can rotate knobs, of course ;-)
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* '''Button/switch push:''' There are 3 types of push actions that can be performed, depending on how long you hold down the button, knob-switch or display widget.
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* '''Touch:''' Display touch or mouse actions.
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The next table describes the types of UI action and the icon used for each along this guide.