Edit all trac.ini options via the WebAdminPlugin
This plugin uses the new configuration option API in Trac 0.10 to allow modification of any field exposed through this mechanism.
This currently includes all core Trac settings, and although no plugins are taking advantage of this yet, I'm sure it will only be a matter of time :)
Note: Many Trac options require a restart of the server process, so your changes may not take effect until that is done.
Side note: You may also want to have a look at the TracIniAdminPanel.
If you have any issues, create a new ticket.
Alternatively for 0.10
sudo easy_install http://trac-hacks.org/svn/iniadminplugin/0.10
or for 0.11, 0.12 and 1.0
sudo easy_install http://trac-hacks.org/svn/iniadminplugin/0.11
to install in your trac environment
cd /path/to/tracenv/plugins ln -s /path/to/the/IniAdmin-###-py##.egg
[components] iniadmin.* = enabled
iniadmin: bump the version to 0.3 and add new maintainer to setup.py
iniadmin: follow-up to r11914, don't call dgettext if the document of option is empty
dgettext and gettext functions translate an empty string to the *.po header.
fixed #10210: shows translated documents for options
iniadmin: simplified iniadmin.html