"Autorun on mount" settings
Synk includes the capability to automatically run your Synk scripts when certain volumes are mounted. This typically is used with external hard drives, so that a backup will automatically occur whenever the backup drive is plugged in. It also can be useful when using a flash drive as a "shuttle" between systems.
In Synk Backup, there is an "Automatically run when destination volume is mounted" checkbox in the top half of the "Settings" pane.
In Synk Standard and Synk Professional, there is an "Autorun when all the selected volumes are mounted" section in the bottom of the scheduling interface, located by selecting "Schedule" from near the top of the left pane. (In certain cases, not all volumes involved in a synchronization may be present in the list, as they may not support the underlying notification mechanism Synk uses to be informed when they are mounted.)