Selecting a Civil3d Profile when its in the drawing but cannot be seen

I am currently busy finishing off a job and for some reason one of the profiles used in a corridor intersection reset all its PVI’s to zero and stuffed up my model.
Tried audit, recover and also tried changed the elevation limits for the profileview to see the profile so I could edit it with no luck. All layers on and thawed.

I knew the profile was in the drawing but how could I select it and edit it when I could not see it. Qselect to the rescue.

1. First using toolspace I changed the style assigned to the profile to a unique name.
   
2. Then a typed qselect and selected the following settings.Object Type = Profile, Property = Style, Value = Unique name of the style
    
3. The command line updated saying one object was selected
   
4. With the object selected I right clicked and choose Edit profile
   
5. Selecting Profile Grid View no data on the profile was displayed.
   
6. So using Insert PVI button at the profile view I inserted a couple of new PVI and bang the profile reappeared.
   locked to the intersection. I edited the profile data now available and rebuilt my corridor and everything was great once more.
   

Manually Lock and Unlock PVI in Profile

One I will forget if I do not write it down. You can manually lock and unlock PVI in the profile geometry
editor window it is just hidden off to the side scroll to the far right and you will find it. Note if you use the intersection
wizard the PVI are locked for you to the primary road if you choose so but you can remove at a later date if needed.