If you entire your entire route and select your entire SID including runway and then Activate the Route the entire SID will be displayed on the MAP.

 

If you entire the entire route, Activate the Route and then put in your SID the SID will not be displayed unless you go Direct to on the first SID point. Though the SID and entire route are in the FMS it will not be displayed on the MAP until Direct to. This also occurs if you have to change runways on the SID after Activating your Route. The new SID does not appear on the MAP until you Direct To the first SID point.

 

With the ability of the 540/440 to display routing I think the SIDs should be displayed as you are insert the SID into your flight plan, irregarless of whether a flight plan has been activated or not. Partituclarly if there is a change in runway after you have left the chocks and are taxing out to the runway.

 

I propose the following language be added to the manual until a permanent fix is addressed:

 

 

 

 

But, agree, a note in the PG about this might be a good idea.

In your scenario, you have created and activated a flight plan and you have some down path leg active (which is all fine).  Then you moved upstream (earlier in the flight plan, prior to the active leg) and inserted some new flight plan legs (in your example, some SID legs).   The system only ever displays the one leg prior to the active leg - that doesn't matter if it's a SID, "normal" flight plan or anything else.    So, this system is acting per design.

Operationally, if you need to do what you're trying to do (create a flight plan, activate the plan and then edit the flight plan to add a SID, and then want to activate/display one of the legs on the SID), you can either perform the Direct-To technique you note, or you can simply activate the desired leg in the SID.