SDK/API:
bool Create(int trialDays, bool currentDate = true, int year = 0, int months = 0, int days = 0, int hours = 0);
void SetDsDeTn(int trialDays, bool currentDate = true, int year = 0, int months = 0, int days = 0, int hours = 0);
void Delete();
int IsTrial();
See the Example.