Yea I know it's just a matter of opening the display settings but I don't know why a shortcut isn't included in the notification bar. There's even an extra dim mode. Just makes no sense to me but hopefully it will be there next update. It'll improve the usability, but only very slightly...
Lots of minor improvements to make use easier would be nice but I'm not holding my breath.
You can go into the support section on the Members App and scroll down to leave feedback You can provide your question in there and quite often you will get some feedback. Never know, it may get implemented
Yea I'm talking about the extra brightness setting , it's only accessible through settings > display. It's not on the notification bar though even when the brightness bar is visible.