How do I edit existing GD&T symbols?

[NTME76249]

I am very new to pro e and have had no training. I need to edit existing GD&T symbols on a drawing and I cannot figure out how to do that. I can make new ones but I have tried everything and have been unsuccessful

Michael McMillan

http://www.linkedin.com/pub/michael-mcmillan/53/375/52b

 

[wroberts]

Right click, Pick from list, select the gd&t from the list then select it again.
No its not obvious but never found anything in Pro-E that was.