Where to upload updated Google Services config JSON?

I've duplicated my project for a beta branch and setup another Firebase project. Created separate set of SHA keys, but the "Upload Config File" button now seems nowhere to be found in Flutterflow. The Regenerate Config Files button keeps putting the old SHA keys to the Firebase project, which creates a duplicated key conflict.

(Source: https://www.youtube.com/watch?v=6rGdGpzSqNA&list=PLsUp7t2vRqx_WoT2jeeWrKykaiGl7y_Gc&index=7&ab_channel=FlutterFlow)