ID:156327
 
Can you add code to a server of a game your hosting.
Generally speaking, no you can not.
To be more precise, there might be games that are developed with a basic 'scripting' language in mind, so that statement is not completely accurate, but this should be a rare case.
In response to Schnitzelnagler
Well im asking because another server of the same game has stuff that my server does not have on it.
In response to Peregrinfin
Then they have a different .dmb. There's nothing preventing different games from having the same hub entry, primarily because different versions of the same game would still be "different games".