Could someone please elaborate on customizing the page builder?

Hi,

Enlightenment theme comes with this perfect page builder functionality. Of course it would be awesome if you can build your own functions for this. I found a way to achieve this by creating my own function and using add_filter to tap into a hook that’s already in the template. But, to be able to see a block in the pagebuilder, I have to manually override template-editor.php to show the function in the pagebuilder. Unfortunately this means that with every update this can be overwritten. I’m therefor looking for a way to be able to configure template-editor.php from my child’s theme functions.php. Anybody has experience with this? Could maybe one of the dev’s elaborate on how to customize this?