請問RealFlight G7 直升機的Idle1和Idle2如何設置

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請教各位賢拜,
1.RealFlight G7中的(模擬)的(選擇控制器),其中有通道編輯和遙桿中立校正,請問Idle1和Idle2,要如何進行設置?
2.其中說明手冊有提到一些設定如下,有嘗試使用Channel 8 Key: O,但還是沒法設置三個開關來做Idle1和Idle2.
Channel 5 Key: Y
Pressing Y will act like a two-position switch. Press the key to flip the switch to its opposite position.
Channel 6 Key: U
Pressing U will activate the knob to one extreme or the other, while holding the key down will slowly rotate the knob.
Channel 7 Key: I
Pressing I will act like a two-position switch. Press the key to flip the switch to its opposite position.
Channel 8 Key: O
Pressing O will act like a three-position switch. A quick press of the key will flip the switch to one extreme or the other, while holding the key down will place the switch to its center position.