Most of the advanced configuration options offered by muCommander require you to edit preference files, which are all stored in a preference folder.
On most versions of muCommander, you'll find this folder in:
- Mac OS X: ~/Library/Preferences/muCommander/ (eg: /Users/smith/Library/Preferences/muCommander)
- Other systems: ~/.mucommander/ (eg: C:\Documents and Settings\smith\.mucommander\)
If you're not sure what your home (~) directory is, just type ~ in muCommander's location bar. You might not know, but muCommander does.
If you're using the portable version, you'll find your preferences folder as a .mucommander subfolder of the place where you installed muCommander.
When closing, muCommander will save its configuration. The consequence of that is that if you modify your preferences while muCommander is still running, they will get overwritten. Make sure you close it before you start working.
Additionally, if you're going to edit your preference files using software like Emacs that saves backup files in filename~, it's crucial that you delete these before restarting muCommander. It has a built-in safety feature used to prevent your preferences from being lost when the system crashes, and if it finds any file ending with ~ that looks like a better version of a given preference file, it will use that rather than the normal one.