The General tab of this dialog is used to change the formatting of the current material property plot, in particular the scaling of the X and Y axes and the size and location of the plot legend.
To access this dialog, right-click on the Material Selection icon in the Study Tasks pane and select Details. From the dialog that appears, select either the Rheological Properties tab or the pvT Properties tab, depending upon the plot you are interested in. Click the relevant Plot button, then click 
Plot Properties in the bottom left of the dialog.
Note: Only tabs relevant to the current type of material data plot will be displayed.