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Or you can just zoom out to see the entire map and locate the shop in a few seconds

Some interesting thoughts in there. You can already click on resources to drop them though. Just click on their icons at the top of the screen

Well I find that missionary can sometimes confuse the barbarians to make them follow you. I've found that they behave like my own troops, sometimes to the point of following the totem. I think it's just a bug

Did you get missionary or did that just happen?

Yeah that happens to me too, especially with mycology