To create a new Run, or update one already created, go to the Organization runs panel.

In this page, you can see all of your runs. Click on "Add new" to create a new one. 

(Please note that when you create an event, the first one is automatically created).

Input the following values:

Status, the status of the run. Can be Hidden (when a run is created but not announced), Visible (when a run is active), Cancelled (when a run has been announced but it is not active), and Concluded (when all the accounting has been completed). The run will not be shown to the players if the status is Hidden or Cancelled. The run will not be shown in the organizer's quick bar, and it's accounting updated with the organization accounting, when the status is Cancelled or Concluded;

Event, the event to which this run belongs. (Will be shown only when creating a new run);

Start, the start date of the run;

End, the end date of the run (can be the same as start).

Furthermore, in the Show section it is possible to manage the visibility of the run's elements to the players: 

Show char, if checked players will be able to see the characters and their data; 

Show teaser, if checked players will be able to see the teasers (of characters, factions, etc);

Show text, if checked players will be able to see the private texts (of characters, factions, etc) given they have been assigned to them.