My ATI2017 makes a weekly backup of my entire system (1 full backup and 5 times an incremental backup and this is repeated every 6 weeks). Is it possible via Option > Advanced settings to program via the Pre- and Postcommands to automaticcally connect (or mount) my external hard drive before the actual backup starts and to disconnect (or unmount) my external hard drive after the backup has been made. So physically I do not want to unplug my external hard drive but the drive is logiccally ejected but not unplugged. In this way I hope that possible ransomware cannot effect my external hard drive, because it is not connected. If this is possible which commands should I use?