General control

GTGOFast — changes the value of the global variable GOFastValue

Installation of symmetry elements

GTInstallAxis — installs symmetry elements according to a certain axis.

GTReinstallAxes — re-installs all symmetry elements.

GTWhichAxes — informs about the actual setting.

Installation of point groups

GTGroupFromGenerators — installs a finite group from a list of generators.

GTInstallGroup — gives a faithful representation of a crystallographic point group.

GTTableToGroup — gives a faithful representation of an arbitrary group.

Standard representation

GTChangeRepresentation — changes the used standard representation.

GTWhichRepresentation — prints the used standard representation.