I want to look at histograms of my data as in this blog post: http://scn.sap.com/community/lumira/blog/2016/02/09/creating-histograms-in-lumira, and more generally, I need to aggregate raw transactional data by userid. Using Expert Analytics, I only have two panes in the Prepare room (The measures and dimensions panel and the data pane). How can I access the manipulation tools panel? I also do not see the icon to toggle between grid and facets views. I was working with PA 2.5, but I upgraded to 3.0 and it looks the same.