At the top and in the connectors list you can see whether a connector is active or not. In the right pane you can see that the top section lists the folders which have been configured to upload documents in training or production. These can be activated, deactivated and deleted. The bottom section is visible after clicking the "+ Create" button. This allows you to choose a folder which needs to upload documents in training or production.
Clicking the sync table allows you to refresh the list, this is handy for when you created a new folder while configuring the input.