Post to specific group topic

[SilviaMorgenstern]

Hi, thank you so much for this useful bot!
I am trying to configure it to post to a specific topic in a group.
If we consider 1234567 as group chat id and 123 as message thread id,
I can configure the bot to post in the group using -1001234567.
However I cannot find a way to post to the specific grouptopic.
I tried with -1001234567 &message_thread_id=123 and also with -1001234567_123
but none of these work.
For now the posts go to the General group topic.
Any idea on how to make this work?
Thank you again !