Not that I am aware. I guess it begs the question, why would you want to? Can you tell us what you are hoping to do with develop history in a VC?
The VC contains all the end points of all the adjustments done to the photo and any snapshots created along the way. Theoretically you can pretty much tweak everything back to original an adjustment at a time with the exception of individual Adjustment Brush strokes.
The main reason it would be handy is that if I go back and make additional changes to the master - then I no longer know the complete history of the VC. But I agree the adjustments are all contained in the settings of the VC. The history is just great for brainstorming and toggling between options.
Paul Grande wrote:
Is it possible to make a virtual copy that includes all the history of the master? Or do I have to create a copy based on Import - then recreate the steps manually?
A virtual copy (VC) can be created at any step of the History Palette. The VC includes all the steps of your master photo to the point in the history when the VC was created - although you don't see these steps in the History panel of the VC.
Example: Your master has the follwoing editing steps: (1) adjust color temperature (2) adjust exposure (3) adjust vibrance.
If - after you made step 3 to you rmaster - you create the VC from step (2) it will reflect the status of the master at step (2). If you create the VC from step (3) it will reflect all 3 steps.
Naturally, you can create a VC based on Import & then do different develop steps for the master and the VC. Or you can "branch off" with your VC at any step in the Develop history of the master. And you can create VCs from a VC at any step in the develop history.