Well, I knew you going to say that, that’s why I mentioned that I need a plugin 
First of all, because I want to learn how to do plugins, I’ll have to do whole lot more complicated things later. That menu is just an example.
Secondly, I really need that menu to be a plugin, because:
- We may reuse it on different projects;
- We need a version control, to roll back sometimes;
- Some links will be generated from external json;
- I want a clean solution. I believe doing it with a plugin is a clean solution;