You would use the “Octant lines” preset of the tool. I also changed the scale factor in the tool to 0.25. To get the black bonds, select the whole structure (Select->Select All) and then bring up the Selection Inspector (magnifying-glass icon at the bottom right of the Chimera window). Change the Inspect category to “Bond”, and then “halfbond mode” to “off”, “radius” to 0.1, and “color” to black. You can change the background to white either with the command “set bgcolor white” or Actions->Color->all actions… and in the resulting dialog change “…applies to” to “background” and click on white.
—Eric
Eric Pettersen
UCSF Computer Graphics Lab