For the transfer to work, you will need to have loaded something into the Data Type "slots", either from disk or from the device (loaded slots are indicated by a ">" sign.
While the settings are being transferred, the communications dialog will show up, indicating the status of the transfer. If there is a problem, you will be informed (see page 158).
You can stop the transmission by pressing [Esc]. The process will be aborted right after the current dump is finished.