Replace Value From Attribute

[#1]

I have a use case where I want to Replace Value From My Attribute

Like I have a Attribute Like :- 
1. Header: A,B,C,D,E
2. Index: 3

Now I Want to replace the index Attribute Value from My header Attribute value with same Position like if I have 3 in my index attribute so it will replace the third aliment from my header attribute or if it's 5 so it should change the 5th one from header and make a new Attribute something like this
Header_2 :- A,B,3,D,E
Based on index attribute number it's needs to replace

Thanks In Advance 

[#2 · Accepted solution]

@sachin_32 

Please check my reply here: https://community.cloudera.com/t5/Support-Questions/Pick-Column-Based-on-Index-Number/m-p/337379/hig...

Cheers,

André