Hi everyone,

I'd like to know if there is an interface already existing that would let me extend a built-in editor. I'm especially talking about the Animation Sequence Editor, where I'd like to add a hitbox visualizer / editor.
I know I could download the source code and change it from there, but I'd rather be able to use an API so I can do that.

Any leads for that kind of stuff ?

Thank you very much in advance for your answers