I have an activity with two hours that could be or not consecutive but I have already entered with the Minimum number of days set to 1 but with a probability of the 50%. How I can set the number of days to 0 in order to make the timetable as flexible as I can. I would prefer they are in the same day but is not mandatory.
How I can work out ?
Go to FET -> Data -> Timeconstraints -> Activities -> Min days between Activities.
Search the constraint/activity you are talking about and set it to 0%. (or even remove it!)
if you prefer same day, then also do this second step:
Add a new constraint:
FET -> Data -> Timeconstraints -> Activities -> A set of activities have same starting day. Add both activites you are talking about and a value less then 100%.