Table of Contents
The Options Dialog allows you to fine-tune DiffMerge to better suit your needs.
All of the various settings are grouped by category into a series of Pages whose titles are listed on the left side of the dialog. You can click on these titles to visit each of the various Pages.
Each Page is somewhat self-contained and has a Restore Defaults at the bottom. This button will restore all of the fields on that Page to their original factory defaults.
The Options Dialog can be accessed using Tools | Options... on Windows and Linux and DiffMerge | Preferences... on OS X.