Propagation of Primary site settings - Client Push for secondary site

[itprozj]

If one configures Client Push installation method at the Primary site level, does this apply to all Secondary sites since they are assigned to the Primary site? Or does one need to go & define the Client Push installation method within all secondary site's Client Installation Methods configuration?

Also, is there some documentation on what configurations set at the Primary site propagate to Secondary sites automatically, & what needs to be configured on a Secondary site in spite of how the Primary site's configured.

Many thanks,
Mark