2.3 Picking Modes

The Picking Mode box in the tool bar controls what happens when you left-click on items in the display area:

Use of Select Atoms mode permits the selection of atoms by clicking on them in the display area. Once selected, a set of atoms can be subjected to an operation, e.g. colouring, or used for a calculation, e.g. of a centroid.

Picking atoms in Label mode will display their atom labels - pick again to switch off the label.

Use of Measure Distance, Measure Angle or Measure Torsion modes permits the measurement of geometrical parameters by picking two, three or four atoms, respectively.

The Expand Contacts mode enables you to pick on a nonbonded contact (specifically, a hanging contact) in order to display in full the molecule at the end of the contact (see Section 11.5).