Adding and Deleting Chart Series and Categories
Any new chart that you add within PowerPoint 2011 has its roots in Excel -- all the data for the chart is also stored within an Excel sheet. Editing chart data within Excel involves a little more than just changing values. There may be times when you want to add a new Series or Category -- in chart terminology, Series are represented by individual columns within your Excel sheet -- these show up as the columns within a typical column chart. Categories on the other hand are essentially a set of series. Let's now learn how we can add and delete Series and Categories.

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Hiding Chart Series and Categories
In PowerPoint 2011, the entire data that shows up on your chart in the form of series and categories is stored within an Excel sheet. These series and categories may show up on your chart in different ways -- sometimes as an individual column or a set of columns within a column chart. For some charts, this data may also be represented as values or a legend. However, almost any chart type -- even if it is not a column chart compares a set of values. Once you delete any of these values, they no longer show on your chart -- so the level of comparison reduces. However deleting is not always the best option, especially if you want to retrieve those values later whenever required. The solution is to temporarily hide values you no longer need -- and then unhide as and when you want to expose those values.

Space Objects Equally
With many objects, your slide may end up looking crowded -- and that's certainly something you do not want to happen. At times though, your slide may appear cluttered even if you really do not have too many objects -- and this can happen because the objects are not spaced out well in relation to each other. You obviously want your slide objects to be properly spaced -- and in earlier versions of PowerPoint, you could achieve proper spacing with the help of Align and Distribute options -- and these options are still available. However, you can now space your objects merely by dragging them around in PowerPoint 2013, with the help of Smart Guides.

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Group, Ungroup, and Regroup Shapes
So what exactly does grouping mean? And what is ungrouping and regrouping going to do further? The moment you select a slide object such as a shape on a PowerPoint slide, you will see some selection handles -- this indicates that the shape is selected. Select another shape while the first one is still selected and you see two sets of selection handles. If you need to similarly select many shapes on a slide fairly often, this sort of selection may become cumbersome -- and waste so much time. In that case, it's best you select all the shapes you need to work with, and then combine them into one "group".

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Nudge and Move Shapes
Nudging a shape or any other slide object is essentially moving it just a wee bit, preferably using the arrow keys on your keyboard rather than the mouse. The Move option is different from a Nudge -- it is more of a super-nudge, and you can also use the mouse to move rather than just nudge. PowerPoint provides more than one way to nudge or move any selected shape or slide object.