Mass Frontier is a layout powerhouse. For structures, as well as for other objects, you can change almost anything that it is possible to change. Every layout setting change also affects printing and copying into Clipboard, except background color, which affects only screen display in the Mass Frontier program. The various layout items allow you to tailor the graphics to your individual report or publication needs.

To open Structure Layout dialog window,

• Click on the Structure Layout  button in the Structure Editor window.
  
  
• Choose the Options | Structure Layout menu item.

By default the symbols for hydrogen atoms attached to carbon atoms are not displayed (example a). If you wish to display them select Show Carbon Symbols (example b) in the Structure Layout dialog box.

Hydrogen atoms are only displayed for carbons if the Show Carbon Symbols check box is clicked. Otherwise corresponding hydrogens are displayed for heteroatoms only.

Note: If you draw nonisotopic explicit hydrogen atoms (example c) these are removed in the Fragments & Mechanisms window, as they can make the mechanism network unclear, especially for complex hydrogen rearrangement steps. A substructure search ignores the number and positions of hydrogen atoms.

The structure layout settings apply to all structures in Mass Frontier simultaneously. This means that if you change a structure layout item, all structures in the Structure Editor, Database Manager, Fragments & Mechanisms, Fragmentation Library, and Fragments Comparator modules are affected.

Note:  If you do not have a color printer and are printing in black and white, and you have set bright colors for bonds or atoms, the lines and fonts may appear indistinct. To avoid this problem, specify darker colors for all structural items, including spectra, chromatograms, and mechanisms.