HassStartTimer no notification on ending on satellite

Hello everybody :slight_smile:

I have searched and read a lot, but don´t find a solution.
Hope anyone can help me

I have a problem with the build-in timer (Built-in intents | Home Assistant Developer Docs)
If I use it in the app, the timer runs and when it’s finish, I got a notification. So fare so good.
If I start it on the satellite, I become the answer timer is started but no notification if it’s over.
I try to find a way to look the the build-in idents, but I can´t find any way for that. So how do I configure the build-in idents?
For this example I need something like “on_timer_finished:” but the build-in indents don´t have an entity, right? So where can I set this?
I’m really interested in the hole build-in indents to costumise them. For an other example if I start a lamp play a specific sound or if i disable a plug send a notification on handy.
Hope you understand what I mean.

If you need any information about my system or config, please let me know.
Any help is welcome :slight_smile: