Merge two running clusters

Hi I have been trying to check how can i do this.

I checked the manual from the trainning but the only step i need to know is how to merge de conifguration files of the clusters

I have a Cluster A with node1 and node2 and ClusterB  with node1 and node2

I will use as target cluster the CLusterA  as target server

Both Cluster has the same version and the same patch lvl on the OS

The private network all of them are in the same vlan

The shared storage is all mapped in the severs

 how  can i  extract the configuration from the source cluster and  add it to the target cluster?

Can anyone help me ?