GGU-TRIAXIAL: "Preferences" menu item
If you go to the "Preferences" menu item the following dialog box opens:

In this box you can specify the use of markers and their size in millimetres.
You can activate visualisation with stress circles in the stress paths diagram.
Different failure criteria can be adopted to determine the shear parameters. Select the required failure criterion for stress paths and tau-sigma diagram visualisation in the above dialog box .
You can display a summary of the shear parameters for selected failure criteria in the corresponding legend (see menu item "Output preferences/Shear parameters for failure criteria").