Help: Create-Your-Own-Symbol and Continuous Contracts

[Xjargon]

Hi,

The Nikkei 225 in SGX can be mutually offset in CME.
How can I create my own continuous symbol ?

For example SGX Nikkei trading hours is from 7.45am to 2.30 pm and 3.30 pm to 7pm and CME Nikkei Yen Based from 7pm (Singapore Time)

Can I create my own continuous symbol under esignal 7.9 that capture 7.45 to 2.30pm sgx data and 7pm cme data or other combinations ?

Thanks

[Xjargon]

please help