Bob,
You would not be able to scan any of your Favorites lists while running a Discovery session.
For your aircraft session, you would use a Conventional Discovery session. You would set a range of frequencies where you want to check for activity. You can also have the scanner save the frequencies it finds into a Favorites list. When you are ready to end the Discovery session, you press the
System key on the left side, just under the display. On the display itself, you'll see a note just above the key, labeled
to Scan.
You can download the results of your session into Sentinel, where you can view a log of what it found, and also review recordings of what was heard. Once you download the results into Sentinel, you can go back to scanning & check the results at your leisure. (You can review the results on the scanner itself, but you could not also scan until you are finished reviewing the results. Plus, doing that in Sentinel is much more 'user friendly'.)
The "Easy to Read" manual for the SDS200 is incomplete as to how Discovery works. Instead, read the comments on the 436HP/536HP scanners' 'manual'. The procedure is exactly the same on the x36HP & SDS series scanners.