Hi Noor,
PostView does not have that capability, although I'm happy to look into it. Our new FEBioStudio (which combines PreView and PostView) does have that ability, so perhaps give that a try (The beta version on the web does not have a lot of PostView features yet, but if you reach out to me via email (steve dot maas at Utah dot edu) I can give let you try our latest FEBioStudio, which integrates all the PostView capabilities).
Best,
Steve
Department of Bioengineering, University of Utah
Scientific Computing and Imaging institute, University of Utah