Hello LDi77,
To confirm, are you using AirPlay to stream content to your Apple TV from your Mac, or wanting to control the content that's being watched through apps on the Apple TV from your Mac? If you're looking to do the later, that isn't possible. If you would like to provide feedback about this to Apple for review, you can do so via the Product Feedback website.
If you're using AirPlay to stream content from your Mac to your Apple TV, you can play, pause, fast forward, or rewind the content via your Mac directly. You can learn more about AirPlay via the link below.
Stream audio and video from your Mac with AirPlay - Apple Support
Take care!