Sorry about the delay on this. Better late than never: this feature is now finally available in the extension 
See May Development Update for more details.
Note that this feature only applies on the initial target box. For example, in case you have a complex autopilot in your snippet and the snippet breaks on a later step of the autopilot (as described in Recall data from last snippet used), then this new feature would not trigger. That part is still on my todo list.