Telegram notification in topic

Hi, I would like to know if it is possible to set telegram notifications in topic, so as to have a single notification group but divided into topics based on the category of hosts. Currently I use the telegram plugin by setting the api key and the notification group id, in theory the topic id corresponds to the groupid/topicid but checkmk doesn’t accept the slash as a value. Does anyone know how to solve this problem, it would be very important for me to find a solution. Thank you