You can add 5 types of additional information after you click a button. These will always tag to the last button click. You can see them in button history. For duration button if you add tags while the timer is running on the button it will attach to the previous entry.
Here you can make changes to button behaviour , appearance and summary calculation. In settings you can make a button private which requires passcode to use. You can also choose which tags to show up on left swipe of a button.