Existing Automation on ZHA device

Hi!
I built up a zigbee network in my home and it seems to be pretty solid. I have a problem: i have multiple automation on my home assistant but i can’t call the using a zigbee button! I use ZHA, it give me only the option to create a new one, where am i wrong??

What is the make and model of the ZigBee button?

Often there will be a blueprint available for a button and this makes life much easier.

Failing that, you may need to use Developer tools - Events to listen for the events associated with pressing the button. Then you can use this information in an event trigger of an automation.

It is ikea tradfri. I can use it without problem to launch automation but i have to create several of them let me explay.

I have to button, that will launch the same automation. I create the automation (let s call it A) by zha, then i go to the other button that will have to launch the existing A automation.
It won’t let me select an existing automayion A but i have to create B (wich is a clone).
I
How can i use A on multiple button?