LIRC – how to select another remote control

i understand LIRC filters which remote control is being passed on to Kodi. How to tell to the LIRC that I want to use a praticular remote control and to ignore anything else? I am using Raspberry and LibreElec. I want to use a Remote A in one device and Remote B in another identical device.

IRW will show commands only from one remote. But, killing lircd and trying with
> mode2 -d /dev/lirc0, I can see any remote is being read. So, I need a simple way to tell to the LIRC that I want it to use some other remote. I presume I should say that to the LIRC, likely in lircd.conf. I would not like to have to define every keypress. Just tel: use different remote using the same standard. Each keypress has encoded which remote is sending it, so a Panaonic and Philips RC6 codes are not be the same.

I want to get 2 different Kodi devices in the same room, both using RC6 commandset to not recognize remote control intended for the other device? I can program anything into a Logitech Harmony remote. Now I am using Microsoft Media Center PC (Windows Media Center SE) commandset for a remote.

As I am dealing with a pure IR sensor (not some finished product), I guess it recognizes anything, not neceserily only RC6.

I can change remote definition in one device into e.g. Philips RC-153 (Media center remote) but how to tell to the LIRC (or Kodi) in a certain device it should recognize only Philips RC-153 and not Microsoft Media Center PC (Windows Media Center SE)?