Allows you to choose two atoms and display the distance between them.

Allows you to choose three atoms and display the angle formed about the center atom.

Allows you to choose four atoms and display the Dihedral/Torsion angle between the two planes defined by atoms 1,2,3 and atoms 2,3,4.

Allows you to delete one or more distance/angle/dihedral measurements.

Self explanatory.

Self explanatory.

Displays a hierarchical list of all defined measurements.