Undo and redo the saved views. The view is saved after each mouse
movement that changes rotation, zoom etc..
Recentre
Zoom in or out to ensure that all graphical objects are on the screen and filling the screen.
Find/Centre on..
Opens the window
The window contains a molecule selection
widget which you can use to select a model and set of atoms. By
default, when you click Centre on button the
display will recentre on the selected atom(s) and will label the
first atom.
If the Show atoms if not visible checkbox is checked then a
new display object may be created to display the selected atoms.
View from
Reorients the display to view from left,right,top,bottom or back.
Split screen
The default for the main window is a single view. There are
options for side-by-side stereo and a three-way split of the screen
showing three orthogonal views.
Rock and roll
Continuously rock or roll (rotate) the display. The rock and roll parameters can be changed in the Preferences window in the Behaviour folder.