You can put it in your .profile. In your file browser press Ctrl+H to show hidden files (.profile, as its name starts with a dot, is a hidden file).
At the end of your .profile file, add a line like (where you replace /some/directory with the full path of the directory the software asked you to add):
- Code: Select all
To activate log out and log in again. This would apply the setting only for your user account, if you want it to apply to all users, add it to /etc/profile instead.