If you want to add settings to an existing section of a configuration file (either later in the file, or when using the #include and #exec constructs), add a plus sign in parentheses after the section heading, as shown below:
This example shows that the setting2 setting was added to the existing section of the configuration file.
If the section you're adding to appears more than once in the config, such as an endpoint and aor named the same in a pjsip.conf file, the section added to will be the first one defined unless you add a filter qualifier.
Without a qualifier:
You're not limited to filtering by the type parameter and you can even use regular expressions in the name or value.
You can also include multiple filters.
And finally, you can elect to include or restrict parameters inherited from templates in the search.