Hi! THe branch I just published contains some functions made a day after code freeze. With this you can check if a named route exists, and call it if it exists. This works well with non-mandatory include files. You can now have building blocks and just dump a NAT-manage file in an include directory. If that's included and that route block is defined, then execute it. Small changes that I added to the cfgutils module if that's ok with all the authors of that module. Please test and if everything seems ok, I'll merge after 4.0.0 release. Have a great weekend! Cheers, /O Documentation: ============== 4.17. check_route_exists(route) Check if a route block exists Parameters: "name" of a route block in the config file, like "route[FROGJUMP]" This function can be used from any route. You can only check for route[] blocks, not reply, event or other routes. Example 1.21. check_route_exists() usage ... if(check_route_exists("FROGJUMP") { $var(jumping_frogs) = 1; }; ... 4.18. route_if_exists(route) Execute a routing block only if it is defined. If it's not defined, silently move to the next action in the configuration script. Parameters: "name" of a route block in the config file, like "route[FROGJUMP]" This function can be used from any route. You can only execute it for route[] blocks, not reply, event or other routes. Example 1.22. route_if_exists() usage ... route_if_exists("PRESENCE_SANTA_CLAUS"); ...