Sonoff T1 Wall switch + IKEA Tradfri panel

Configuration
1

I have 4 Sonoff T1 wall switches and every switch is connected to an IKEA Tradfri panel. They work fine in HA as separated units but I want:

  1. Only one unit (per es. lamp bulb) is shown on Lovelace layout. Single click switches wall switch state but double/long click shows panel’s properties, not switch’s (nothing interesting there, eh?). So I can turn on/off light by single click and change light temperature, brightness, etc by double/long click.
  2. Turn on and off light by clicking button on IKEA RC. Actually light is on/off by a wall switch and IKEA RC just changes brightness to 0% or 100%, but I want to send signal from RC to HA and from HA to a wall switch saying “switch your state”.

Thanks a lot in advance and sorry for my puzzle-headed first post here.