The following headings classify molly commands lossely according to their function. The same command may appear in more than one class. The help files on individual commands sometimes give links to other closely related commands as well.
| arithematic | -- | basic arithematic commands. |
| binary | -- | commands to do with binary stars. |
| calibration | -- | arc, flux etc, calibration. |
| display | -- | plotting. |
| fitting | -- | gaussian/poly/spline etc fitting. |
| flags | -- | molly customisation options. |
| fudging | -- | detailed editing of spectra. |
| headers | -- | listing/editing etc of spectrum headers. |
| information | -- | information about slots. |
| input | -- | data input commands. |
| manipulation | -- | spectrum operations of more sophistication than arithematic. |
| measurement | -- | measurement wavelengths, fluxes etc. |
| miscellaneous | -- | anything that does not fit into other classes. |
| output | -- | data output commands. |
| polarisation | -- | anything to do with spectropolarimetry |
| time_series | -- | commands to do with time variability. |