Modern interface

hello guys...
I missing some things in the modern interface like linking calendar with notifications and geofences as well as linking car drivers.
how can I do that?.
Sorry, I'm using Google Translate

Notification and Geofence calendar field is something that we missed. Here's a fix:

https://github.com/traccar/traccar-web/commit/5f7a71c53255e9103530d4489bdaad44efe5a0e8

As for drivers, you should be able to link them to device. Select device, click edit and drivers will be update "connections".

thanks anton..
please more explain

Which part?

(Notification and Geofence calendar field)
Which file should be modified?

You have to compile the app.