To start the Autosave condition in DTDP you need to configure Trigger in DTDP Configuration as below :

The Trigger could be based on Temperature Threshold or External Input.

Once you configure the Trigger in Configuration, you can run the software and open "Snapshot View"

Right Click on the Snapshot view and select Auto-save Conditions with desired selections.

Note: For saving of snapshots the Snapshot view and its saving conditions needs to be always opened or at least minimized (but not closed)!

When saving snapshots, the defined zone grid is not stored!

In case of any issue with automatic saving. Please close the Snapshot view window completely and re-enable.

After re-enable please do complete the Auto-save Condition configuration by right click on the window.