Calculation view - Runtime Extension and Activation of calculation view using ABAP

Hello Experts,

1.I am working on calculation view. I have one union cube which has one child projection Node (say- Projection 1.).

Now I want to add one more another child projection node(say-projection 2) to the union cube from ECC using ABAP.

2. once this new child node gets attached, I want to add attributes from new projection node to the target attribute of the union node with runtime mapping using ABAP.

I think we can consume them with XML, perform internal table and data formation and deploy them with same way.

Basically, all operation that we perform in Calculation view, I want them to perform using ABAP from ECC.

Can you help me here please.??

Regards,

Ajinkya.