Setting Laptop charge limit in UEFI, using laptop closed and using laptop with faulty screen connected to external display?

[Gone]

1. Are there any laptops where max charging limit can be set in the firmware (UEFI)? This could be useful in cases where one is using Linux on the laptop with it always plugged in since the software to limit the charge percentage is not mostly available in Linux and only on Windows. 
2. Are there any gaming laptop where you can turn on the laptop without opening the laptop with it plugged in? Like having power button accessible with laptop lid closed. 
3. If your laptop display goes bad, is it impossible to use the laptop with it connected the external monitor to access the firmware or boot-screen? Is it the case that most laptop manufacturer?  

Thanks for the input and suggestions

[AMD A10-9600P]

Some laptops have software tools to let you do that. I can cap my ZenBook at 60, 80 or 100% charge from the MyASUS app.

[dkoudijs]

A weird question is can't you just pull the battery? If you are just going to leave it plugged in?

As for the power on thing, I'm sure you have thought of some type of hybrid sleep where a wake on USB would trigger it to turn on.

Sadly unless the power button for the laptop is on the side I don't think you could do what you are looking for in modern laptops. (Most buttons are on the keyboard side now)

 

Last messed up choice, some dells let you do this is turn on when it detects power. So have the laptop set to power on when detect power, plug laptop into a power bar on your desk, or a something simular and power the laptop on by turning on the power bar.