In the dialog of figure 4.3 the R-Object is displayed in the left window (''Data selection''). Doubleclicking an entry or marking one and pressing the ''Add to output'' button will put this entry in the right window. Elements in the right window (''Output ports'') are ready to be individualy directed to other nodes in the Module Diagram. In this way it is possible to select individual parts of an R-Object for further computation or ploting. Figure 4.4 shows the RDissection node in a Module Diagram.
After selecting relevant parts of the R-Object, we call whats in the right
window a selection. The RDissection Node also allows for storing selections for later use.
To do this, name the selection and press save. The stored selections are
available in the ''Selection Collection'' combobox for later use.