You may need a few more tables. You need to account for an event at a specific time along with who will attend, and what it will be about.
This sounds like a many to many relationship between your events table and your Technicians table. One Technician will need to be linked to many events and a given event will need to be linked to more than one technician (at least for meetings).
This normally requires a join table:
Technicians---<Technician_Event>------Events>-----Meetings (and a similar link to WorkOrders)
Technicians::__pkTechnicianID = Technician_Event::_fkTechnicianID
Events::__pkEventID = Technician_Event::_fkEventID
A portal to Technician_Event on a Technicians layout will list all events for which that Technician has been scheduled.