In Cashout, what does it mean "Type account"? Thx
I think you mean "Type Amount", there you have to type how many btc you want cashout.
6. You can have maximun 3 buildings of the same cost activated at the same time. Faucet building is 1 and free;
So I can buy each building 3 times?
At the same time, yes. (that's why you have 3 "PROGRESS" for each building)
When one or more reaches his cost*2 and it will be disabled, you can rebuy that, if you want.