You can also create a box starting from existing data sets. To do this, select the data set you wish to load by clicking on the icon and then on the data set's name.
A "table"-type box will then automatically be created. You can then replace the table with any other type of graph by using the box editor feature.
Tip: in order to ensure immediate display of data in your graphs while in "creation" mode, the data displayed in the Dashboard Manager is only a sample. Full data is systematically displayed in "preview" mode or in the Dashboards application.