VR commands

Thanks so much Marianne for your input. I was able to get the commands working
for changing cc to mL and % to percent

I would very much like to see the SRT commands glossary with some of the most
frequent commands. I will keep working on the others. I have tried creating
macros for some of these others but cannot seem to get the macros to work with
the platform that I use.

IT commands work much better.