Cyberwizzard

blueprint:
  name: ZHA - IKEA five button remote for lights v3
  description: 'Control lights with an IKEA five button remote (the round ones) with custom dimming.

    The middle "on" button, toggle the lights on/off to the last set brightness (unless
    the force brightness is toggled on in the blueprint).

    Dim up/down buttons will change the brightness smoothly and can be pressed and
    hold until the brightness is satisfactory.

Cyberwizzard

blueprint:
  name: Link Multiple Switches
  description: |
    ## Link multiple switches together v1.1

    Select multiple switch entities to link their on/off state.  If any selected switch entity is turned on or off, the other selected entities will be sent a matching on or off command.

    Requires Home Assistant 2022.5.0 or newer.
    
    Edit Cyberwizzard: as suggested by @kingy444 switches and lights can be selected to keep in sync.