There ever several things I can’t find on the Free PBX 2.3.1.0 interface
How do I delete extensions routes etc
How do I set up an IVR No IVR links exist on the menu
For the IVR to work you need to install the IVR module to start.
To remove a extension route delete the extension.
oh, and kudos for actualy ASKING a question (unlike people that open bug reports)!