This is where you will see the “map” of the airspace you are controlling. Exactly what that map looks like will depend upon the data compiled by the “data preparation” team for your FIR, and you should consult the documentation provided by them for information regarding:
as all of these will vary for each FIR.
The general concepts that you will need to understand in order to use the SDD are:
IVAC2 has been designed in such a way as the use of panning-around and zooming in/out should be unnecessary in most situations as you can open INSET windows specific to other parts of the map.