FileSnapShot is a utility which functions similarly to the Rhino IncrementalSave command. It automatically saves a copy of the current model to a new, incrementally numbered file, (the snapshot) while keeping the original file open.
More details...
FileSnapShot writes out the current file to a unique and automatically incrementing file name. It determines the last number used in a previous FileSnapShot and properly increments it for the new file name.
File successfully written as <drv:\path\filename 00x.3dm The drive and path are the location of the current file, and the file name is decorated with an automatically incrementing number.
This number is incremented properly, even if the file is closed and opened during an subsequent editing session.
FileSnapShot will not ask if you to type in a number or if you want to overwrite a file.
FileSnapShot uses the SaveSmall option by default, but that may be configured by running FileSnapShot.
If the files has not been saved prior to using the FileSnapShot command, Rhino will prompt you to save first with the following message: “This file has never been saved. Rhino cannot save a snapshot from an unsaved file.“
FileSnapShot is available in 32-bit for Rhino 4/Rhino 5 and 64-bit for Rhino 5.