It looks like Microsoft has been listening. You can now completely customise the top quick access tool bar. For PowerPoint power users this will save a lot of time. Especially for aligning and distributing objects.
Make sure you have the latest update installed, and you will have access to a new icon in the PowerPoint preferences dialogue box.
For some reason, I still cannot find all the functions though. Flipping and rotating for example. Maybe I have not looked good enough, and/or there is still a small bug that needs to be ironed out.
I would like to recreate that ideal tool bar I posted about back in 2008.
Top image from WikiPedia.