diff --git a/.idea/runConfigurations/Sample.xml b/.idea/runConfigurations/Run_cfig_sample_definition.xml
similarity index 82%
rename from .idea/runConfigurations/Sample.xml
rename to .idea/runConfigurations/Run_cfig_sample_definition.xml
index 0586743..9e16fa4 100644
--- a/.idea/runConfigurations/Sample.xml
+++ b/.idea/runConfigurations/Run_cfig_sample_definition.xml
@@ -1,12 +1,12 @@
 <component name="ProjectRunConfigurationManager">
-  <configuration default="false" name="Sample" type="PythonConfigurationType" factoryName="Python">
+  <configuration default="false" name="Run cfig.sample.definition" type="PythonConfigurationType" factoryName="Python">
     <module name="cfig" />
     <option name="INTERPRETER_OPTIONS" value="" />
     <option name="PARENT_ENVS" value="true" />
     <envs>
+      <env name="EXAMPLE_NUMBER" value="not a number" />
+      <env name="EXAMPLE_STRING" value="a" />
       <env name="PYTHONUNBUFFERED" value="1" />
-      <env name="MY_REQUIRED_STRING" value="a" />
-      <env name="MY_REQUIRED_INT" value="not a number" />
     </envs>
     <option name="SDK_HOME" value="$PROJECT_DIR$/.venv/bin/python" />
     <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/cfig/sample" />
diff --git a/.idea/runConfigurations/Run_cfig_sample_usage.xml b/.idea/runConfigurations/Run_cfig_sample_usage.xml
new file mode 100644
index 0000000..dc25f70
--- /dev/null
+++ b/.idea/runConfigurations/Run_cfig_sample_usage.xml
@@ -0,0 +1,26 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Run cfig.sample.usage" type="PythonConfigurationType" factoryName="Python">
+    <module name="cfig" />
+    <option name="INTERPRETER_OPTIONS" value="" />
+    <option name="PARENT_ENVS" value="true" />
+    <envs>
+      <env name="EXAMPLE_NUMBER" value="not a number" />
+      <env name="EXAMPLE_STRING" value="a" />
+      <env name="PYTHONUNBUFFERED" value="1" />
+    </envs>
+    <option name="SDK_HOME" value="$PROJECT_DIR$/.venv/bin/python" />
+    <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$/cfig/sample" />
+    <option name="IS_MODULE_SDK" value="true" />
+    <option name="ADD_CONTENT_ROOTS" value="true" />
+    <option name="ADD_SOURCE_ROOTS" value="true" />
+    <EXTENSION ID="PythonCoverageRunConfigurationExtension" runner="coverage.py" />
+    <option name="SCRIPT_NAME" value="cfig.sample.usage" />
+    <option name="PARAMETERS" value="" />
+    <option name="SHOW_COMMAND_LINE" value="false" />
+    <option name="EMULATE_TERMINAL" value="false" />
+    <option name="MODULE_MODE" value="true" />
+    <option name="REDIRECT_INPUT" value="false" />
+    <option name="INPUT_FILE" value="" />
+    <method v="2" />
+  </configuration>
+</component>
\ No newline at end of file