I'm also new to LEM but I'm starting to find may around nDepth pretty good now for ad hoc reports. I can't give you specifics because we don't have an ASA, but I can give you a start in finding what you need. In the upper left hand corner of nDepth move to slider to the A, which is text mode. In the search line enter the destination IP, change the time range to Last Day, click the run arrow. You'll get all the events associated with that IP. Peruse the events and look for ones that match what you need. On the left you'll see categories of events, You can match those to what you see in the event list's fields. Change the slider back to Drag & Drop mode, drag event fields to the right of the IP address. Run the report again. It's not always intuitive to find what you need, so keep playing with the fields this until you get results you want. But everything is there you just have to find it. You can also hover over the blue bars to the right of the query box and change the AND to OR if needed. Once you do you get the data you're looking for you can click the gear on the upper right and save the report so that all you have to do is click on it next time. You can also schedule reports to run automatically.
Also, any reports you create under your log in are specific to you, they are not global, unless you schedule automatic reports to an email group.