Navigate to the Litigation Tab.

Scroll down to Mediator.

Select the Mediator header.

A pop-up window will appear.

Select the mediator from the drop-down menu.

If the mediator is not listed in the drop-down, click Add.

Enter the new mediator's information.

Select Save.

When back in the original pop-up, choose the new mediator from the drop-down menu.

Select Save.

The changes will be reflected on the Litigation Tab.