Award points to an entire house, just like you give points to students.
You can give points to a House, say for a House event or field day, by creating students with your House names. This way the House will show up in the Points app just like your students!
You first need to create the House as a student, then add that "student" to the appropriate House. Learn how below!
You'll then have a student button for the Houses in their House rosters, but you can always search for the House too, just like you do for students.