In addition to the secondary, tertiary and minor rates of progression, it is possible for the user to specify their own rate. The existing rates that are pre-defined are as follows...
•Secondary Rate - one day per solar year = 1 / 365.24219907 = .00273790926
•Mean Tertiary Rate - one day per lunar cycle = 1 / 27.32158648 = .03660109676
•Minor Rate - one lunar cycle per solar year = 27.32158648 / 365.24219907 = .07480402242
You can define your own rate by simply working out the required ratio e.g. if you wish to use a lunar progression rate
Lunar Progression Rate = 1 day per lunation cycle = 1 / 29.53059027778 = .033863190359
In the "Preferences" dialog, "Progs/Dirns" tab you can select a previously entered rate from the drop-down list or simply enter a new progression arc rate as a decimal number. The last ten rates that you enter here are stored in the list for easy reselection later.
The progression rate selected here will be used whenever you select to use the User Progressed chart method when creating a progressed chart from the Progressed option of the Charts menu. This rate is also used in dynamic reports whenever you select User Rate from the Progression Type option of the “Dynamic Report Selection” screen.