I don't think any of those fields are there.
1. In the next version I'm planning detailed weapon skill reports. Right now when you see skill average, and skill average and skill high/low it combines all skills with each other. so if you do evisceration once and dancing edge once both of those factor into your average. detailed weaponskill reports will allow me to distinguish between these two, and provide high/low/averages for each one separately, as well as more information in general about skill usage, including how many were used overall, how many of each type, etc. I guess this is one of those things that has to wait, but I'll make a note of it and put it in the next version.
2. This also isn't there. In a future version I'm planning to try to determine this automatically. My thought is that if a player doesn't do anything for more than like 10 seconds, consider him "inactive" until such time that he does something again. This would exclude all those players who were dead or afk without your intervention at all, although I might still be able to add a feature to exclude certain people.
3. For now the loot table is the best way to see this, but as you probably noticed it doesn't show anything if out of all the mobs with a particular name, none of them ever dropped anything. I may be able to change this in the beta so that it shows an emptytable for enemies that never dropped anything, that would probably have to suffice until the next version, when I can do a better job.