Hello  @TechyGuy 

thank you for the inquiry, currently there isn't a controller/ switch to physically control multiple plugs. 

If you have a kasa smart switch like HS200, you could set up an automationto turn on smart switch, then turn on a group of kasa plugs, you could learn more from guide below：

Common questions about Smart Actions in the kasa app

Ifyou have an Alexa device, you could create a scene on kasa app to control a group of kasa plug, and use Alexa to turn on / off Scene. Alexa app itself could also group the smart device and control it via voice command. How to control Smart Devices by Amazon Echo with voice commands?