With the new notification bubbles introduced, theres a few things I feel could be configurable.
1. You should be able to set the size of the windows that open, as of right now they just take up half of the screen as far as I'm aware, you should be able to resize it to fit the whole screen or however you want it.
2. The notification bubbles should remember where they last were on your screen before they were dismissed. So that when they reappear, they appear in their last location rather than just the top left of the screen.