How can I set the file types that can be uploaded to our account spaces?

As an administrator, you can add and remove file extensions from an account's file whitelist through the account settings. (This feature will be available with the May 20, 2019 update)

• Click on Accounts from the left sidebar of Kona.
• Click on your account name. 
• Click the “Edit Account" button.
• Click on the Files tab.
• Under Extensions Whitelist, click +Add new file type to add a file extension or click X to remove a file extension.
• Hit the "Save" button.