Hi. All btc are stored in our wallet.
It has a lot of addresses: for all customers, for change that comes from dividing transactions and so on.

What do you mean send all your money? You can create a wallet at fruitwallet and store as much as you need for you pocket expenses.
Sure I have bitcoin address, why do you need to send me money?

Which shortcuts do you mean? screenshots? or ios home screen shortcut? but nice to hear anyway.

P.S. not sure if I got you right.