Not quite how advantage works, or the dice system.
So ALL dice explode in Open Legend, this means if you roll a max on any dice, you roll it again and add it to the total for that dice.
The way advantage works is, you get to roll extra dice and keep the highest.
so on the 1d10 (attribute score of 4) dice you mentioned, with Advantage 2, you roll:
3 d10 dice (the original 1, plus the 2 advantage dice). Then you get to keep the highest of that. There is some complication on a few edge cases for how Open Legend actual does exploding dice, but I don’t think that is what you are referring to here.
You can choose to use the “complex build” for NPC and bosses, which is build like a player. However, you are correct on the part about different HPs and defense that are setup and the quick build. For this currently:
You’ll notice that there are Other spots, or Feat spots where you can enter in numbers to adjust the various stats. You can use a negative number there as well. This will allow you to adjust it to be what you want for NPC/Bosses
If you notice the very first post at the top, it has planned things currently being worked on, one of which is a new tab that will be for NPCs, Alternate Form, Companions. Summons.
See #2 answered above. I Create a seperate sheet for my players for each of these, I recommend that b/c of Tokens, and being able to save them and have them work. In the future, you could have them on the same sheet and utilize the other tabs, however, you won’t be able to make them work as nice with Tokens (though still possible)
Always glad to hear feedback and got other opinions. My mind and perspective is only one, and there have already been some nice imporvements based on feedback from others. I might be defensive at first on some things, but I try my best to listen.