Error in tool_offsetview.py

I added the "Go to zero" function to "axis_tool_button.py" but it makes little sense from the user's point of view.
What do you think about adding the ability to add such functions in an easier way, maybe in an ini file?

I agree it seems the wrong place.
How do you propose INI button functions would work?
a list of builtin functions that can be enabled?
What functions?