The File Open button will open an previously saved Project (ZPR format). Projects will save everything that is present on the document at the time of saving.
The Save As button will save everything that is in the document into a Project. This will even save the Tool and All Subtool(s) along with their position.
The Revert button restores the current Project to its condition when it was last saved. ZBrushCore first asks you to confirm this action.
The Lightbox>Projects button gives instant access to the Projects tab in Lightbox.
Optimize for 3D Printing
The current model will be optimized so that the number of polygons is below 200,000.
Optim. & STL Export (No Color)
The current model will be optimized and exported to a STL file. No polypaint color is included in this file format.
Optim. & VRML Export (Color)
The current model will be optimized and exported to a VRML file. If the model is Polypainted the color will be included in the file.