@@ -162,8 +162,8 @@ JSON
 .. literalinclude:: ../examples/start-directory.json
     :language: json
 
-Environment variables
----------------------
+Environment variable replacing
+------------------------------
 
 tmuxp will replace environment variables wrapped in curly brackets
 for the following variables:
@@ -206,6 +206,23 @@ JSON
 .. literalinclude:: ../examples/env-variables.json
     :language: json
 
+Environment variables
+---------------------
+
+tmuxp will set session environment variables.
+
+YAML
+~~~~
+
+.. literalinclude:: ../examples/session-environment.yaml
+    :language: yaml
+
+JSON
+~~~~
+
+.. literalinclude:: ../examples/session-environment.json
+    :language: json
+
 Focusing
 --------
 
 
@@ -0,0 +1,15 @@
+{
+  "environment": {
+    "EDITOR": "/usr/bin/vim",
+    "HOME": "/tmp/hm",
+  },  
+  "windows": [
+    {
+      "panes": [
+        null, 
+      ], 
+      "window_name": "Blank pane test"
+    }, 
+  ], 
+  "session_name": "Environment variables test"
+}
@@ -0,0 +1,10 @@
+session_name: Environment variables test
+environment:
+  EDITOR: /usr/bin/vim
+  HOME: /tmp/hm
+windows:
+  # Emptiness will simply open a blank pane, if no shell_command_before.
+  # All these are equivalent
+  - window_name: Blank pane test
+    panes:
+    -