No problem! I see you're an Amplitude programmer - massive respect, you guys making amazing games. Also you owe me like two weeks of my life for Dungeon of the Endless :P
The usability thing is basically: whenever I click on a bot to see/change its behaviour, I either want to click the flowchart to edit it (ie, jump to the blueprint), or I want to hover over the nodes to check their details (because I haven't learned all the icons yet, although most of them are fairly intuitive).
I've just realised that actually, you've trained me with this expectation. On the AI List screen, I can click on a flow chart to edit an AI. But on the Select Bot AI screen, I can't - I have to click the edit button. The inconsistency is confusing an unnecessary.
That edit button, in the bottom-right corner (the one that lets me edit an AI), is also a bit confusing and introduces some low-level confusion. Firstly, depending on whether I have a bot selected, it will take me to one of two different places: the AI list screen or the blueprint-edit screen. I often find myself a little surprised and disorientated because of this (now that I've fully articulated the behaviour, the problem might go away for my personal experience).
I have a couple of other little niggles, but they all go away if you drop that bottom-right edit button. Let me edit a behaviour by clicking on a bot on the Setup screen (and then clicking on the flow chart in the Select Bot AI Screen), I think you create a cleaner, simpler, more predictable interface.
If that's still not clear I'l maybe drop you an email with some screenshots. And ad 24-page Powerpoint presentation :P