Of course a few minutes after I sent this I figured it out on my own.
In the Mechanica results window you need to go to Edit > Result Window
then in the Result Definition Window select the Display Location tab and
then select Components/Layers in the pull down list. This will bring up a
model tree which you can then select the components you wish to Blank or
Unblank. Pretty simple I just needed to figure out where it was.
Thanks to those who already replied. Next time I'll look harder before
sending a question.
Mark