I use SF6 but not Kepler, so I can only provide help on the former.
Solar Fire can be tweaked but it is rather unwilling to change on any permanent basis unless you use the rulership editor in utilities.
For traditional work I set 'Display Points' to medieval and 'Aspect Set' to moeity. I also chanage the house system in preferences/edit settings to Regiomontanus.
However 'Reports' still gives me the modern rulers as the first option when I click on 'Rulerships'. OK you can use the drop down box to select traditional rulers, but if you want the traditional rulers as your default (which I do), you have to use the Edit Rulers/weightings under the Utilities menu. The editor provides 4 levels of rulerships, Level 1(Modern), Level 2 (Traditional) and Levels 3 and 4 (Esoteric and Hierarchical). Level 1 is the default display in the Rulerships Report. The only way I can see of changing this is to rename it (and also its menu display) and then rather labouriously edit the dignities for each sign to match your desired set. This should give you the required default rulers.
I still havem't figured out how to change the default chart display to a traditional format. I still have to go through the process of selecting my preferred display once I have a chart on view.
Hope this helps