Add Custom Filter for Weekly Timetable

I want to know if there’s any way I can use the coding editor to add a new filter onto the Weekly Timetable widget for booking classes.

I am using Wix Studio Editor

Weekly Timetable has out of the box filters for Service Name (Class name) and Staff Member (teacher)

But my client needs to add a new filter for Location of class.

I have reached out to Wix customer support and they have told me it’s not possible through the widget. But is there a way I can do it through the coding editor?

My client wants to leave the Staff filter as is so I’d like to create the Location filter to look the same.

I am proficient in HTML CSS and JS, but not proficient in Wix