Create Custom Node in ISU MDT (Category CRMNEWCONTRACT)

Hi Experts,

I have a requirement to create two new contracts using one MDT i.e of category CRMNEWCONTRACT.As we know one MDT type CRMNEWCONTRACT can create one ISU contract only.So we are trying create a custom node coping the node Create Contract for Move in create node in the MDT ,but system says unable to support the function.Just wondering if this is right way to copy and create a new custom node in the MDT .Please help me out here to resolve this.

Thanks

Snehasish