Aqara T1 with neutral switch with 3-way lighting switched

Dear all,
I have two traditional 3-way switches for a set of led downlights in my living room. I would like to keep my plates and switches and add remote control functionality using the Aqara T1 switch with Neutral. Can someone kindly explain in simple terms how and where to place the Aqara switch?
Please note that I live in Africa and do not have access to a specialist in home automation. However I can explain what I understand to a qualified electrician.
Thank you

Do you mean where to place them physically? I have no clue about electrical standards where you live but here in northern Europe you usually have so-called flush mounting boxes in the wall behind the light switches. That’s where you place the T1, ie behind the switch.