Wix Headless Settings OAuth App Setup Issue

Hi! I’m creating a mobile app that needs to log in users using Wix. I’m trying to set up an OAuth app for this.

But when I go to Headless Settings > Create New Client, the Client Type is stuck as “Other” and I can’t change it.

I want to use the Visitors & Members type, so I can allow users to log in from the app and receive an access token.

Can you help me enable this? Or tell me where I can create the correct type of OAuth app?