Cannot access my models sitting on my second drive

### Custom Node Testing

- [ ] I have tried disabling custom nodes and the issue persists (see [how to disable custom nodes](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled) if you need help)

### Expected Behavior

With the latest update the extra_model_paths.yaml stopped working and I cannot access my models sitting on my second drive anymore.

### Actual Behavior

I have figured out that you have moved and renamed this file, but in the new one there is no option to configure an external drive anymore.

### Steps to Reproduce

This stopped working and was not transfered to the new version of ComfyUI, and it looks like it is notsupported anymore.

comfyui:
base_path: C:/Users/XXXX/Documents/ComfyUI/models/

external_models:
base_path: D:/ComfyUI_Models/
checkpoints: checkpoints/
loras: loras/
diffusion_models: diffusion_models/

### Debug Logs

```powershell
None
```

### Other

_No response_