This is often the same as the data file asked for first. Solid eigenvalues are occupied orbitals - HOMO is therefore at the top of the solid lines. Dotted eigenvalues are virtual orbitals - LUMO is therefore at the bottom of the dotted lines. You can display up to 16 orbitals but the information is rather overbearing. Orbitals are colour coded up to 24 colours before recycling.
Rotation is as described for the main window but varies in two aspects.
A full screen is available during rotation and the cursor must be dragged above the window to return to the books. Below and to the sides does not work. Book 3 allows different orbital representation. Hybrid orbitals are best used when there is significant d orbital contribution - otherwise little difference will be seen between unhybridised and hybridised orbitals Only orbitals are shown with a coefficient greater that 0.1. This can be useful for large molecules which have many eigenvalues.