Telegram notifications and users

Hello, I have a few questions:

• What is the "notification tokens" in the account attributes used for?
• Is it possible to extend Telegram event notifications with adding chatId in the account attributes instead of in the configuration file? Or is it possible to send notifications to different Telegram channels depending on the user?

About second question: https://github.com/traccar/traccar/pull/4310
how to configure it?

Good option is also https://github.com/traccar/traccar/pull/4309
But I don't know how to compile app from source by myself ;/

you could solve it?
https://github.com/traccar/traccar/pull/4310 it does not work

Hello, does Telegram notification works? I add

<entry key='notificator.types'>telegram,web</entry>
<entry key='notificator.Telegram.apikey'>YOUR_BOT_API_KEY</entry>
<entry key='notificator.Telegram.chatid'>CHAT_ID</entry>

put wright API Key and ChatID but I don't recive notifications.
Regards.