Scheduler Grid HTML File

The Scheduler grid can be customized using the API, such as onBeforeCellRender event handler (see https://doc.daypilot.org/scheduler/cell-customization/).

The full version includes unminified source code which you can further customize but that is rarely necessary.

Also, please note that there is no HTML file that defines the Scheduler structure. The DOM is generated using JavaScript and the Angular version uses a wrapper around the JavaScript core.

If you post an image with an outline of what you are trying to achieve I can give you a hint on how to implement it using the Scheduler API.