Unable to delete or add constraints in a different position representation

[Anonymous]

This might sound like a dumb question, I'm a newbie, and just switched to using Inventor from a similar CAD program I've been using for many years, but I've been searching for 4 hours and haven't been able to solve the problem.

I'm unable to delete or add constraints in a new position representation, the Extended position (shown in the screenshot). I have no problem doing anything in the Master Position Representation, but in Extended Position, the Joint and Constraint Buttons are greyed out... and right-clicking a relationship... the Delete command is greyed out.

[swalton]

You can only add/delete constraints in the Master position rep.

If you need different constraints in a position rep, add and suppress them in Master.  When you go to your other position rep, suppress and enable your various constraints as required.

[Anonymous]

Thank you so much for explaining. It's still a little confusing why it works that way, but I think I'm able to make progress on the assembly now.

[blair]

Think of a hydraulic ram in it's extended position as the "Master" position with a constraint of 36" for the extended length. You now want to create a positional view with the cylinder retracted. You can't delete the original 36" constraint and replace it with a 24" constraint. You can suppress the 36" constraint in the retracted view and place a 24" constraint to move the extended ram into a retracted position.

When you return to the Master view the cylinder will return to it's extended position/state