User 870ab5b546
13-03-2011 04:26:59
Draw cyclohexane. Choose Structure -> Clean in 3D. Double-click on the structure to select it, or click on it with structure selection turned on. Choose Structure -> Add Explicit H atoms. See MarvinSketch set all of the structure's z coordinates to 0.
Interestingly, if instead of double-clicking on the structure, one chooses Select All from the Edit menu, the z coordinates are preserved.