Is there any way to set a group of 3 bulbs to be controlled together? Individually they work, but in my future all 3 really need to do the same function at the same time.
Yes, in the Kasa app you can create a group by going to the "Devices" menu, then select the "+" symbol on the top right, and add a group. You can add all three bulbs to be controlled in unison. Here is a article that talks about it: https://www.tp-link.com/us/support/faq/2299/
Alternatively, if you have Google Assistant or Alexa, you can group them and control them by voice command.