Why is SHC not being replicated to other member?

[tkdguq0110]

I have a SHC with 3 search head with Enterprise 

when  I add user, field, dashboard in GUI, everting is good to replicate to other SHC member.
BUT add  anything  in 'Setting' -> 'Data inputs' meau, not replicated to other member.

any idea? 
Thanks

[richgalloway]

This is a Good Thing.  Replicating inputs would cause data duplication.

[tkdguq0110]

Thanks your response, 
but my company's splunk enviroment, if I add inputs in gui other cluster members get same input value..
I do not know specific enviroment..
it can happen??
my test enviroment not replicated as you say.