There should be a possibility to plot three lines/variables in a single Graph without having to catergorise them. The Graph View normally connects the variables only by category or by using the pivot or de-pivot option. I have data which all refers to the same category and hence it is not possible to seperate it by category. If I have 3 prices refering to the same product for the same date and I want to compare them, I should be able to do it using the Graph view.

Attached is the file of such a data.

While this can be achieved using the Bar/line View which Thomas has already suggested, the Graph view because of it ability to just plot data without actually having to join the points and the ability to have a hover plot (my data is further subdivided and not as simple as shown in the file attached) is much more useful and should have similar capabilities.