If the connection configuration and user name is the same as an existing configuration, it is not necessary to configure it again, even for OAuth configurations.
You can select the existing configuration in the drop down
Here you can select the provider for OAuth2, Office365 or Gmail
To obtain the credentials it is necessary to do it from the desktop interface in administrator tab.
The Office 365 configuration will use an ChronoScan app registration, it also allows to configure for using an app registration in our own Azure tenant. To create an app registration you can follow this help IMAP Office365 configure OAuth2 using own app registration
When using Entities, IMAP hotfolder batches can be set to a specific entity from this menu. Together with the IMAP Folder options and built-in filters on the email server, several IMAP hotfolder configurations can be created to accommodate any kind of Entity configuration.
The Check connection button will allow you to test the connection to the IMAP server. It also shows the number of pending emails for the current configuration.
If an error occurs the error message should help troubleshoot the issue.