Hope I'm not being too pushy with the feature requests, just see it as feedback and do with it what you will ;)
The 'red circle' that shows the bot's working terrain apparently is centered around the location of the first item you interacted with when you were teaching the bot (i.e. if you're teaching it to chop wood, it will only chop wood in a certain radius around the location of the tree you chopped to show the bot how). It would be nice to have more control over this; for instance by clicking on the 'Find nearest x' entry in the learning dialog, and then clicking the position on the map you'd like to be the center of the bot's working area. Not too hard to fix this up when you're working with inanimate objects (e.g. just drop a log where you want the center to be, then show the bot how to pick it up and bring it to the storage), but I found it very tricky to set the working area I wanted for my bot-recharger-bot. Then again, maybe that's how you want it ;)
On a related issue: the 'Find nearest x' has the bot go to the 'x' nearest to the center of its 'red circle'. Sometimes this makes for very counterintuitive behavior, where for example a bot ignores a tree that's right next to the one he just chopped down, to walk to the other end of its 'red circle' work area where a tree is a fraction closer to the center. Reading 'Find nearest x' I would find it more logical for the bot to find the 'x' closest to its current location (while still within the red circle, to prevent it wandering off too far).
Perhaps this could be added as behavior for higher tier bots; it'll make them 'smarter'.