Being able to switch an existing chart from Line chart to bar chart etc., without having to manually create the object from scratch again (in Webi one can easily change the visualization of an existing chart for example bar chart to a line chart at a click of a button).
Providing more markers for the graphs
Being able to create [b]layers of objects[/b], which would be useful if you have objects overlaying each other using dynamic visibility.
A horizontal bar chart uses the underlying data sorted from bottom to top, this is counterintuitive.
If one is using multible tabs on the dashboard having a navigation bar for all the tabs (similar to Powerpoint for the different slides)
Being able to select/mark (a.k.a. brushing) various data points on the dashboard and group them for further analysis (see Tableau saoftware)
Being able to easily create small multiples (for example create the same chart type for each product category, the individual charts displaying revenue by month)
Ability to resize a component to the size of another (for example, a background to the exact size of a canvas)
Having the Print button not disapear when…printing
Introducing local variables within a dashboard (persistent).
Ability to make scenarios persistent (so a scanario can be reloaded after a dashboard has been restarted, not only during a session).
Selective printing: the dashboard designer can either assign to a print button a chosen area of teh screen (as suggested by Harish) but a list of components to be printed, the others remaining invisible on print.
X-Axis display that starts at 0 not with white space before or at the end of the series.
8 ) Combo charts with lots more! Not just columns and lines.
Proper animation rather that wipes and fades, for example in the way data is displayed.
An image component that works properly please with several more formats, including some vector formats and a resize function that doesn’t fail when canvas is resized to components (images revert to original size when you do that).
The ability for the ListView component to specify the alignment of each column, to show combinations of text (left) and numbers (right) and special text (centered), etc.
The ability to see/modify the size of a component in pixels.
The ability for the switch buttons and list selections to be altered from the Excel-model. With other words: it should change according to a change in the destination cell.
For those who are interested (and this is not a promotion), we have quite a list going in our Linkedin.com Xcelsius Gurus Group. The link is in our signatures below, not to mention we have ton of SAP folks on there.