To sit type /sit or press the insert ( ins ) key located at the top right section of most keyboards, and to stand again type /stand or press ins again.
I don't go but the setlist seems like absolute trash due to Brokencyde, I mean really, what the hell. D: Who wants to see a band who sings about drugging up underage girls then raping them?! No thanks!
LOL, welcome to Acer, the company that builds laptops with bad materials, has terrible customer support, and overall doesn't give a damn about your happiness.
Enjoy!