diff --git a/content/components/packages.md b/content/components/packages.md
index 5d4f7889d8..20af5a6aa3 100644
--- a/content/components/packages.md
+++ b/content/components/packages.md
@@ -182,7 +182,7 @@ captive_portal:
 sensor:
   - platform: uptime
     id: uptime_sensor
-    update_interval: 1min
+    update_interval: 5min
 ```
 
 ```yaml
@@ -194,6 +194,31 @@ sensor:
     update_interval: 10s
 ```
 
+`!extend` also works with substitutions and jinja:
+
+```yaml
+substitutions:
+  switches:
+    - left_switch
+    - right_switch
+    - center_switch
+  
+  mains_switch: 1
+
+switch:
+  - platform: gpio
+    id: left_switch
+    pin: 1
+  - platform: gpio
+    id: right_switch
+    pin: 2
+  - platform: gpio
+    id: center_switch
+    pin: 3
+  - id: !extend ${ switches[mains_switch] }
+    name: "Mains switch"
+```
+
 {{< anchor "config-packages_remove" >}}
 
 ## Remove
@@ -229,6 +254,19 @@ sensor:
     update_interval: !remove
 ```
 
+`!remove` also works with substitutions:
+
+```yaml
+substitutions:
+  disable_reboot: true
+
+switch:
+  - platform: restart
+    id: restart_switch
+    name: "Living Room Restart"
+  - id: !remove ${disable_reboot and "restart_switch"}
+```
+
 ## See Also
 
 - {{< docref "/index" "ESPHome index" >}}