Seeing that there is the option to cast Sideral Natal chart, I was searching for the posibility to cast the transit chart for that Sideral Natal chart, but I didn't find it. On Astro-seek I found it.
Please let me know how I can make it.
The workaround would be to cast 2 different charts, calculated with Sideral method, one for the natal and one for the transit, and then cast a third one from Horoscope /Bi wheel.
It's not so difficult, but it's not so obvious for those who would like to simply cast a sideral natal chart and then immediately to cast a transit for it, but that one to be on sideral too. A condition (flag) should be set in the code for this thing I suppose.
Thank you