Trigger events method with media manager

I have read through https://www.wix.com/velo/reference/wix-media-backend/events/onfileuploaded but I’m trying to figure out how I can trigger this event when I manually add a file to Site Files via the Media Manager interface. I don’t want to introduce a method to add files from the website in this case and want to manage it via the admin console. I’ve written some code to automate some of the manual tasks I have been performing to minimize operational effort. The Automations as part of the admin console don’t appear to have features for media-manager events.