content: usage: advanced: sidebar-menu: add mission config

content/usage/advanced/index.md

@@ -557,6 +557,24 @@ These features help with error tracking and troubleshooting, so in normal use ca
 - **System logging** creates [application logs](#system-application-logs) that can be checked or shared with
   developers to help debug issues
 
+### Missions and Safety
+
+While autopilots often include built in failsafes and pre-arming checks, it can also be useful for the operator's
+interface to require explict confirmation before a safety-related or mission critical action is even sent to the
+vehicle.
+
+Depending on the interface configuration, some interfaces may make it easy to accidentally press a button or
+slider on the screen that has an undesirable outcome, so it is possible to require these actions to be have an
+extra confirmation step:
+
+{{ easy_image(src="mission-config", width=500) }}
+
+{% note() %}
+If you want a similar feature for joystick button functions, consider assigning them to a
+[modifier-based slot](#modifier-keys), to require a modifier key to be held down before the function
+can be triggered.
+{% end %}
+
 ## Status and Recordings
 
 ### Video Library