A conference, a launch, a sports day, and a training room do not share a template. They share a sequence: who is coming, what happens first, and where people sit.
Capacity comes before decoration. If the room cannot hold the guest list, the stage, the catering, and the print all change. Write the agenda in order, with a start time on each item.
Workshops and annual programs need the same honesty about the day. One run of show, shared with everyone who is setting the room, is the document that keeps the hour from drifting.