This is for ultimate beginers of Zbrush who don't know the interface very well, strugle with navigation and other basic things such as saving and exporting renders.
To hide the window at the bottom of Zbrush 4 when it opens press the 'comma' key or ' , ' .
Rotate: hover over an area of a 3D object + press 'Right mouse click'
Move/pan: press 'Alt + Right mouse click'
Zoom in or out: press 'CTRL + Right mouse click
Save as a 'Ztool' to save any work progress/ history/ subdivion layers
Export as '.obj' to use in most other 3D programs.
Render and Save an Image for Printing:
Click render tab at the top of Zbrush 4 + choose quality setting.
Next click document tab at the top of Zbrush 4, click export, choose either .psd (photoshop) or .tiff or .bmp for any other program.