How to create a custom visualization for a new bucket?

Hi!

I’ve been working on correlate my active windows time with tasks and projects. I currently have a new bucket where I store my tasks heartbeats with their respective project, but i’m unable to visualize that data in the activity panel.

If a create a new view with a custom visualization, i got an error message asking for and index.html file for the respective watcher. I don’t now where does that file shoudl exists. Can somebody explain a little bit of where is this file created? and maybe also how to execute a query in it to request the relevant data.

Thanks in advance. Greetings.