Handling multiple 433Mhz remotes

So I have multiple 433Mhz (Homeeasy via RFXcom) remotes that control the same smart sockets.

The remotes show up as a new device for each button. I’m trying to figure out the best way to link the remotes, and the sockets that they control.

So for example, button 1 controls the desk light. Button 1 on remote A and remote B, have both been learnt by the desk light socket. So when it’s switched on using remote A, remote B also shows as on. The second issue, is how to get HA to send the ‘on’ signal if it’s controlled via HA, if that makes sense?