Hi @cyr0nk0r
I got what you mean - thus the quotation marks and 
-Smilie.
This is definitely possible, as @r.sander already wrote. It’s also possible without a feature release. As @r.sander said, you will need to modify / override the graph definition of the built-in graph with your own. Whether this falls into your definition of ‘hacking’ - idk.
There is no official guide on how to do this that I know of. Some people here in the forum will know (I don’t).
That’s the best I can do right now, sorry.