Hello! Thanks for posting. Let’s see if we can clarify the situation!
Identifying CAO charts
To begin with, you can tell CAO and STD charts apart by looking for the symbol highlighted below.
Any chart that has this symbol is a CAO chart. Otherwise, it is an STD chart!
For more details about what the differences are between these modes, see the official Jeppesen document for CAO charts: https://ww1.jeppesen.com/documents/educational/why-jeppesen-charts/Jeppesen_Airline_Charts_Series.pdf
Switching between STD and CAO charts
This setting can be changed on two different levels - global and per-flight. You will find the global setting in the settings menu:
And the flight-specific setting in the flight options:
The connection between the two looks like this:
When a new flight is created, it uses the mode that the global switch is set to. After that, however, the mode for that flight is “disconnected” and does not change automatically if you change the global mode - you will have to change the flight option directly!
Potential gotcha when switching modes
Depending on the implementation (EFBs not developed by Navigraph vs our own Charts application for example), changing the mode may or may not immediately change the chart. In our app, the chart that you have open remains open when you change mode, regardless of whether a new chart of a different mode is available. There are several technical reasons for this, and it is not likely to change.
This means that after changing the mode, you need to check the chart list (or pinboard) again and press your chart of choice. These lists should automatically update immediately when changing the mode!
Here’s a quick demonstration of how it works:
I hope this helps! Let me know if you have any further issues.
Kind Regards,
Malte