+If the input path is a *directory*, then:
+
+* If 'SESSION' is specified, the tracing session configuration named
+ 'SESSION' is searched for in all the files of this directory and
+ loaded if found.
+* If 'SESSION' is not specified, the option:--all option is implicit:
+ all the tracing session configurations found in all the files in this
+ directory are loaded.
+
+If the input path is a *file*, then:
+
+* If 'SESSION' is specified, the tracing session configuration named
+ 'SESSION' is searched for in this file and loaded if found.
+* If 'SESSION' is not specified, the option:--all option is implicit:
+ all the tracing session configurations found in this file are loaded.
+
+Aspects of the loaded configurations can be overridden at load time
+using the option:--override-url and option:--override-name options.
+
+By default, existing tracing sessions are not overwritten when loading: