1. I’d agree cold wallets are not for active trading it’s more of a long term ser it and forget it kind of thing. But yea it can also be used for that.
2. Assists are not on the titan nor the app they are on the blockchain whatever it shows is what your supposed to have if your in doubt check a blockchain scanner for the coin you want to check and enter the address that will give you whatever is actually in the address.
3. To receive a coin you need to add the address if it’s on the titan device add the coin then scan that QR code on the app under the blue label cold wallet. Then it’s just receive/send