Extension mode missing when hitting F6

[demoxx]

System: Windows 10
Battery or AC:
Model: UX434FLC
Frequency of occurrence: Everytime
Reset OS: not known
Screenshot or video: picture
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Detailed description：
When I hit F6 I only got 3 options: Screenpad Mode, Traditional Touchpad Mode, Touchpad is disabled

[Blake_ASUS]

Hello demoxx,
You have screenpad 2.0, which extension mode is combined in Screenpad mode, not separate one.
Please refer to below introduction.
[Notebook] ASUS ScreenXpert (Screenpad 2.0) - Introduction | Official Support | ASUS GlobalThank you.

[demoxx]

Thanks for the reply.
But im still confused.
How can I see a video on screenpad and still use the screenpad to control pointing arrow on BOTH screen?
If screenpad is activated with 3 finger, the screenpad will dim and video cant be watched probably, this is NOT what I want.

[Blake_ASUS]

Hello demoxx,
yes, this is the current design.
If you would like to use the pointer without dimming the screenpad, please kindly use a mouse.
Sorry for the inconvenience caused, your feedback has been reported.
Thank you.