This area is found in Campaigns > Campaign Presets.
Your Campaign Presets section allows you to preset all of your default campaign settings. All new campaigns that are created, will pull from the settings set up in this area and inherit these settings. Once created, you can alter any setting in the campaign itself. (This also means that making any changes to the Campaign Presets area will not affect any existing campaigns, it will only take into effect for campaigns made in the future). You can think of these as templates for your campaigns, so you'll want to make sure that all of the information in this area is the way you want it to appear for most of the campaigns you will be creating.
The first section is the Organization Info tab, this is the area which controls the contact information and organization details that will be populated into the receipts and confirmations that are automatically sent to your donors after a transaction. This is also where you define what email those receipts will be sent from (the automated receipts are white-labeled to your organization, and do not look like they come from Flipcause).