In the latest PowerPoint 2016 software update, Microsoft started to fix one of the last remaining issues in a great product: customisation of the top tool bar. Here is a screen shot of what is new:

Things are limited to just these functions though. In PowerPoint 2011 it was possible to add any function you want to the top bar. File, save, and definitely print, are not the actions a PowerPoint user needs to access all the time. What I would like to see are buttons to align and distribute objects, and move things to the front and the back. Here is my toolbar from PowerPoint 2011:

Image from WikiPedia