Create new event with some basic info like event name, date and time.
Optionally you can set price and minimal number of participants that are required for event.
After event is created you can invite users by sharing event key.
Each event has own todo list where you can add todo item and assign event member to it.
Only members that are participating in event can be assign to todo.
Each event has basic chat functionality that allows you to exchange text messages within selected event.
Only members that are participating in event can view your post.