The Clean function allows you to achieve a professional look to your structures. In contrast to other commercial structure drawing programs, with Mass Frontier you can even clean up an individual part of a structure. For example, you can restrict cleaning to certain functional groups, while the main skeleton remains intact. However, the algorithm of cleaning 2D structures is a particularly difficult mathematical problem and has yet to be completely solved. As a result this function may, in some complicated cases, lead to structures you will not be completely satisfied with. If this should occur, simply use the Undo function.

To clean a structure:

1. Select the structure/or part of structure you want to clean up.
2. Click the Clean button , or choose the Structure | Clean menu item

Note: If you want to clean only part of a structure, the selected atoms must be connected, otherwise the message box appears to remind you that only cleaning of connected atoms is possible.