I strongly suggest watching the Aion Viper videos Here.
Melee here:
http://www.youtube.com/watch?v=Xr5ekRL3lCs
Caster here:
http://www.youtube.com/watch?v=H_sybDS9LO0
I would watch BOTH. After you watch them my explanations will make more sense.
- - - - - - - - - -
The bot will look for a body after a fight and try to loot it ONCE. If it doesn't get anything or the body has no items then it moves on. No getting stuck there.
You can see in the video that you have 5 Phases. They are "Start Fight", "Single Mob", "Multi-Mob", "After Fight", and lastly "On Death" (or rez or somthing).
So to answet your question about the bandages you can just put them on the "After Fight" area. You can also set a hotkey to be out of combat only. This will work on any phase. For example, if I have a root I want to use as my starting attack, BUT don't want to root them if they are already attacking me (because rooting someone next to you is a waste). I would check the "Out of Combat Only" box, and I will only root if I don't have any agro (the bot knows if you have agro).
Chain skills are easy. Once again there is an option for each action to be listed as a chain and it adds a second box (you can do this again for a third).
There is a small problem that will be fixed today with the bot auto facing. The bot is well know for automatically turning to face a monster so even if the monster ran away it would turn to follow and pursue. There is a slight problem with this in Aion, because Aion already has an auto facing option built in. After the update today they will give you an option to turn the bots auto facing feature on or off. After that it will be perfect.
On top of all of this is the dedication of the team here. They always work to fix problems as quickly as they can.