How can I cut a cube (wall) for window placement?

While creating a building around the Starter Chair and table content, I am trying to create a wall for window placement. How do I cut the wall for the glass in the windows to be clear?

you could use the windowswall from the starter content or use any modelling software to create your own wall with a hole for your window

Thank you, making a cube the correct shape and subtractive works also. >^;^<