Cancelling scripts seems possible via VbScript by hitting 'esc' (Rhino.sleep(0)). I tried the same technique with python (rhinoscriptsyntax.Sleep(0)), and rhino eventually hanged-out. Is it possible to cancel a script with a different way?
The main reason for doing this is because I sometimes can't imagine when the script will end,
when doing form finding. It will be good if I can decide when to stop while looking the results. Maybe multi-threading?