With Options Manager you can Export and Import your Global Options and use Activate Options to switch between the Imported Global Options and the previous Configured Global Options. Furthermore, it will make it easier to distinguish which Menu Items have Options that are different from the Global Options.
Joomla! allows the configuration of Global Options for installed Extensions, as well as individual modification of these Options on a per-menu basis.
After installation the Component can be found in the back-end via Components > Options Manager. The Component has two major functions: Global Options and Menu Item Options.