Controlling bold bond and wedge thickness

How can one control the bold single bond as well as the wedge thickness independently from the bond thickness (MarvinSketch 5.3.1)? The bold single bonds and wedges that are put on the canvas by default are way to thick for my purposes. 

For producing drawings fit for publications, control over these features are need (e.g. for emphasizing perspective in chair conformations of cyclohexane structures).

Hans-Peter Kohler

Dear Hans-Peter,

You can change the thickness of bold single and wedge bonds by setting
the "double bond spacing" in the Preferences window on the Display tab,
in the Edit menu. We will rename the field for the next patch release.

Regards

Eva