There are two main settings for scheduled scenarios:
Regular (for example, every hour, or every 15 minutes);
Daily (every day in a certain time; for example every day at 9:00 a.m.);
Weekly (for example, on Mondays and on Saturdays at 1 p. m.);
Monthly (for example on 10th and 20th).
Filter for objects;
If your scenario has 'By crone (schedule)' trigger and is not stopped, you can run it manually by clicking Other actions → Push all objects in scenario