Atlas Copco GA 75+ Instruction Book page 84

Instruction book
The first item in the list is highlighted. In this example, the Net Pressure is selected (chart icon).
To change, press the Enter button again: a pop-up window opens:
Press Enter again to remove this input from the chart. Another confirmation pop-up opens:
Select Yes to remove or No to quit the current action.
In a similar way, another input signal can be highlighted and selected as Main Chart signal:
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