P: Creating snapshots for multiple photos at the same time in Lightroom's Develop module

Sometimes I'll have shared an entire gallery of edited images and then at a later time I want to re-edit the entire gallery with a different look.  It would be great to have an easy way to save the original edited version all at once for all the images in the gallery (or those selected) instead of having to create a snapshot of each image one by one before applying the new edits.  

Would love to be able to select multiple images I want to create snapshots for and then there would be a submenu available under the '+' sign next to Snapshots that gives the option to create snapshots for 'all selected images'