Changing the Highlight Box Size

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The size of highlight box is controlled by the Tolerance value in the Preferences dialog box. With the default Tolerance setting of 5 pixels, the highlight box appears on atoms if the pointer is located in a square region 10 pixels on a side or +/- 5 pixels from the atom.

To change the Tolerance:

1. From the File menu, choose Preferences.

2. On the General tab, select or type the tolerance, and then click OK.