There are lots of answers to this depending on whether you want individual item controls or multi-item scenes and how complex you want the system to get. They all boil down in one way or another to a simple underlying structure: a rule that responds to updates of an item linked to the scene channel and sends the appropriate command to your target item(s).
Here’s a setup so that a remote toggles several different items depending on button pushes:
Or you can read about setups that actually control many items at once.
