Playing simultaneous games in multiple tabs - cool

Sometimes I get bored about waiting my opponent to move, so I just start a new game in a new tab of my browser, and play both simultaneously. With Ctrl+Tab I can switch between boards in a blink of an eye and I can even register pre-moves. That's more exciting, so I play even better, despite having to share time.

Question 1: Is that allowed? I hope so, because it works much better than hosting a simul, allowing me to quickly pick challenges someone posted, or even post my own challenges.

Question 2: I would never use multi-tabs for cheating, nor analyze any game while playing in simultaneous tabs. Yet, is there any chance that the auto-defense system for cheaters detection could be triggered mistakenly just because I'm playing on multiple tabs?

Thanks in advance for any answers !

1. Yes
2. Yes it can, but if you aren't cheating the probability of auto-mark is very low; it might notify a mod to investigate but I don't think you need to worry. In case it happens, email lichess.contact@gmail.com

Yeh. This might have been the reason I got marked I dont remember if I was playing multiple at that time or not. I often do play multiple CASUAL games in different tabs but hardly ever when I am playing rated (too concerned about my rating) :P.

I do now recall I was chatting with amigos on facebook when I got marked. Not playing multiple games.