Most astro-locality mapping techniques are independent of the astrological house system. The only item in Solar Maps which requires a House System to be used is viewing a chart wheel. In this case the calculation of house cusps will depend on which house system is selected with this option.
Select one of the “House Systems“ options from the “Options“ menu. A check appears to the left of whichever option is currently selected. Any charts subsequently opened or calculated will use the newly selected house system.
