User Defined Zodiacal Aphesis:
To find a user defined zodiacal aphesis, click on the "Zodiacal Aphesis User Def" radio button with the chart you are interested in already highlighted. This will cause the User Defined Aphesis combobox to become active. Select the sign position of the lot or planet you are interested in generating a period listing for, then click "Clear" and "List Times" to get the period.