Have just returned form my first trip round Europe using SD and with incomplete/out of date paper maps because of the well-known Jepp withdrawal.  SD was very good, but one piece of data was not immediately findable - FIR identifiers. It may be that i am looking at the wrong scale or in the wrong place, but on paper maps that item is easy to see. When filing flight plans we need to put it in and SD seems to do this automatically, but if we need to refer to a boundary, it would be good to see it on the map

I'm afraid we decided long ago not to include these on our maps. The reason is that they have no practical purpose other than using in flightplans, and as you said, we include them in flightplans automatically. If you can help us to understand exactly how they're useful in another way, we may of course reconsider.