HEIDENHAIN IK 5394-3D - Manual (Page 28)

Chapter 1 Overview
1-10
Locked/unlocked features
Some parts use more than one reference frame to measure all its features.
Locked features always display results from the reference frame they are
measured in the results window. Unlocked features are display results for
the current reference frame.
To unlock a feature
Step 1
Click the lock icon in the results window.
To lock a feature
Step 1
Click the lock icon in the results window.