Coinkite one of the most secure and useful online Bitcoin Wallets has expanded its multiple signature service to expand to up to 15 members. The expansion and cosigning tool will allow businesses more options and flexibility with their Bitcoin usage, management and security. The new security tool will allow for multiple levels of approvals as well as conditional withdrawal and more. A typical business can now expand their usage of Bitcoin and keep it more secure as well. The multi-signature expansion will allow for a chain of command and approval with more flexibility.