Mutiple Links to Parallel Transformer stage -- SHOCKED ???

[datisaq]

I am in a production support cum enhancment project where i came across few datastage(version 7.5) PARALLEL jobs which is having multiple links to the transformer stage.

I can add multiple reference links to the transformer stage which is very strange which i found. I thought its the BASIC tranformer stage but no its a Parallel tranformer stage where i can add refernce links to it.
This is contradicting the tranformer stage definition of the book.
Please suggest me... Is this can be possible.???

When i am trying for a new datastage job/new tranformer stage its not supporting it. So how this has supported the developer who has created this datastage job?? Please help me...