Can i use family client codes in internet trading with single login

i have 5 client account's with my broker , but he says that i have to log out and login in the code to put order, is there any broker who can map my family account and i can put orders in all accounts thru single log in.
These are safety measures inbuilt in the software to protect you from error or malpractice, and I feel they should be adhered to. In case a site provides you with an option of single login, you will still have to fill in different IDs to carry out transactions.

Similar threads

Broker Special Offers

Intraday Higher Leverage

Save up to 90% in brokerage and get higher leverage for intraday trades.

Are you a day trader?