Chose menu: FlightPlan/Map or click and the IFRPlan map form is displayed
Click the button and the flightplan will be drawn
In order to enlarge the drawing either click the zoom-in button or draw a rectangle using the right mouse button around the area, which you want to enlarge.
Enlarge the area around EGLL and click it's airport symbol and the symbol's color changes to red
Click the form with the right mouse button and the popup menu will appear. Click 'Show SIDs' and the listbox in the upper right corner of the form is filled up with SID names.
Select 'ALL (40)', all stored SID's are drawn
The picture is a little bit confusing, but, as you can see there is a SID named DVR... So, use popup menu to clear all SID's, repeat step 4 and select DVR5F and only this SID will be drawn. If you click the dot named DVR5F it is going to be highlighted:
Now click Insert SID and Clear SIDs on the popup menu and SID DVR5F has been inserted into your flightplan.